I. What is BT?
1.BT Introduction:
1.1.BT is one of the hottest download methods, it's all called "BitTorrent" short "BT", Chinese full name "bit stream", but many friends will it dubbed "abnormal download", which is what reason? For HTTP, FTP, Pub and other download methods, This is typically done first by placing the file on the server and then being transferred by the server to each user's machine, which works as shown in Figure 1. So if you download too many users at the same time, it will inevitably affect the download speed of all users, if some users use multi-threaded download, the impact on the bandwidth is more serious, As a result, almost all download servers have restrictions on the number of users and the maximum download speed. Obviously, because of the above reasons, even if you use a broadband network, it is often difficult to achieve the highest speed the operator promised to download, there is a network of reasons, but the limitations of the server is irrelevant. Because of this, Bt download method appeared, soon became the favorite of download fans.
1.2.BT server is a MLM way to achieve file sharing, it works. For example, if a BT server divides a file into n parts, with a, B, C, and D four users downloading at the same time, BT does not completely download all parts of the file from the server, but instead downloads the downloaded part from the other user's machine according to the actual situation. For example, a has already downloaded the 1th part, B has downloaded the 2nd part, then C will be downloaded from a machine in the 1th part, from B's machine to download the 2nd part, of course, a, B, ding three users in the same time from the machine to download the corresponding parts, which greatly reduces the load of BT server, It also speeds up the download speed of C, which means that each computer that participates in the download downloads files from other users ' computers and also provides downloads to other users, so the more users download, the higher the download speed.
2. Trivia:
2.1. Do you know what the difference between a BT download and a regular download is different from the regular download file, when you do a BT download, the address where you start the link is the. torrent end of the file. In fact, as long as the download of this file, run this file in this computer can do bt download work. and the online BT download links are provided by the majority of users themselves, so that the download information is very wide, not subject to the restrictions of regular managers.
2.2. BT download Soul: seeds. Regardless of the BT client program, the default settings are not limited to download speed and upload speed, because the BT software will give users faster upload speed, that is, the faster the upload speed, the faster the download, so if you are using broadband, download do not limit the upload speed.
2.3. After the next download, if the BT client program is not closed (for example, while running BT to provide upload services, while browsing the web, editing documents, etc.), you will become a messenger of the torch, the "seed" (seed). In other words, if a file is divided into 10 parts, but there is only one person with the 9th part, that is, there is only one seed, if the user is disconnected or shut down for some reason, then other users can only download to 90%, which is the most distressing when downloading BT.
Why 3.BT download speed is not fast:
Sometimes, BT download speed is not fast, there are many reasons for this. For example:
3.1. Not a public network user. Because the intranet user cannot provide the active connection, the download speed certainly will be slower than the public network user, this is very normal.
3.2. Upload speed is limited. Since all BT client programs provide priority service to users who upload faster, if you limit upload speed, you are actually restricting your download speed in disguise.
3.3. The number of seeds is too small. If the number of seeds is too small, of course, it will affect the download speed of other users, there is no way, it is necessary for each BT user to carry forward the spirit of "Lei Feng", their own download after the end do not immediately close BT, otherwise the number of seeds will be less and fewer.
3.4. Blocking of the firewall. Firewall software will also have a certain impact on the download speed of BT, of course, in order to ensure the security of the system, this little impact can be negligible.
Impact of 4.BT Downloads on hard disk life:
BT doesn't hurt the hard drive at all.
4.1. Using BT to download things in peace with FlashGet download things to the hard disk read and write mechanism is exactly the same, only in the domestic people say BT hurt hard drive. I do not know which idiot first proposed, and then a large group of PC rookie are the root of the blind shouting. Let the pseudoscience go to hell, is hard disk read and write frequently really hurt the hard drive and FlashGet and BT really hurt the hard drive? In advance, it is only mentioned that FlashGet and BT, did not mention Ed and FTP, because they are the same principle.
Why does frequent reading and writing damage the hard drive?
4.2. Magnetic head life is limited, frequent read and write will speed up the head arm and head motor wear, frequent read and write disk a region will increase the temperature of the area, will affect the stability of the region's magnetic medium will also lead to read and write errors, high temperature will also cause the area due to thermal expansion of the head and disc surface closer ( Under normal circumstances, the head and the disc surface only a few microns, more near also got?), but also affect the data read sensitivity of the film-type head, the clock frequency of the crystal oscillator will change, but also cause the failure of the hard disk circuit components.
4.3. A large number of tasks will also lead to the IDE hard disk premature damage, due to the lack of IDE hard disk itself, too many task requests will increase the seek failure rate leads to frequent head reset (reset is the head back to 0 tracks, in order to re-seek) acceleration of the head arm and head motor wear.
Let's talk about how modern hard drives work.
4.4. Now the hard drive, whether IDE or SCSI, is the "Wentzel" technology, has the following features: 1. Magnetic Head, disc and motion mechanism seal. 2. Fixed and high-speed rotating plating disk sheet surface smooth. 3. The head moves radially along the platter. 4. The head to the disc contact start and stop, but the operation of the flight status is not directly contact with the disc.
4.5. Disc: The hard disk is the magnetic powder attached to the aluminum alloy (new material also useful glass) disc surface. These powders are divided into concentric circles called tracks, and on each concentric circular track there are countless arbitrarily arranged small magnets that represent the state of 0 and 1, respectively. When these small magnets are affected by magnetic forces from the head, the direction of their alignment changes. The magnetic force of a magnetic head is used to control the direction of certain small magnets, so that each small magnet can store information.
4.6. Disk body: The disk is composed of several platters, these platters overlap together in a sealed box, they are driven by the spindle motor at a very high speed, and its speed of up to 3600,4500,5400,7200 or more per minute.
4.7. Head: The head of the hard disk is used to read or modify the state of the magnetic material on the platter, in general, each magnetic surface will have a head, starting from the top, numbering starting from 0. When the head is stopped working, it is in contact with the disk, but it is in flight state at work. The head takes the contact start and stop in the landing area of the disc, the landing area does not hold any data, the head is stopped in this area, there is no problem of damage to any data. When reading the data, the disk rotates at high speed, and due to the ingenious aerodynamic design of the head movement, the head is in the "flight state" of the 0.2---0.5 micron height from the data area of the disk surface. It does not wear with the contact of the disk, but also can read the data reliably.
4.8. Motor: The motor in the hard drive is brushless motor, under the high-speed bearing support, the mechanical wear is very small, can work for a long time. The high-speed rotating disk body produces the obvious gyro effect, so the working hard disk should not move, otherwise it will aggravate the bearing's working load. The drive head of the seek-in-feed motor use voice coil rotation or linear motion stepper motor, in the adjustment of the feeding track tracking the disc accurately, so in the hard disk work without impact collision, when moving should be handled with care.
4.9. First, there is no contact between the head and the data area, so there is no wear problem.
4.10. Second, a boot drive is in a rotating state, the spindle motor rotation can reach 4500 or 7200 rpm, which is not related to whether you use FlashGet or Ed, as long as a power, they are on the turn. Their wear is also software-independent.
4.11. Once again, the movement of the head under the control of the seek motor is left and right, and the amplitude is very small, starting from the most inner layer (landing area) of the platter, slowly moving to the outermost layer, and then slowly moving back, one track to another track to find the data. There will be no big jumps (not frogs). So its wear and tear can also be neglected to remember.
So, how does the heat come about?
4.12. The first is the spindle motor and seek to feed the motor rotation, the temperature of the hard disk is mainly because of this.
4.13. Second, the high-speed rotation of the disc and the friction between the air. This is also the main factor.
4.14. The hard drive reads and writes??? Unfortunately, it's calorific value can be ignored do not remember!!!!!!!!!!
4.15. The read operation of the hard disk, the magnetic field on the disc changes affect the resistance value of the magnetic head, the process of the film will not heat, the head is because the current changes, so there will be a bit of heat generated. What about the write operation? In turn, the current intensity of the magnetic head is constantly changing, affecting the magnetic field on the disc, this process because of electromagnetic induction, so the magnet hair heat larger. However, the disc itself is not hot, because the permanent magnet on the disc is cold, not due to the magnetic field changes and heat.
4.16. But overall, the calorific value of the head is dwarfed by the previous two. Heat is radiation conduction, so high heat on the disc on the permanent magnet experience will not hurt it? In fact, the damage is very small, permanent magnet demagnetization temperature, far higher than the normal condition of the hard disk temperature. Of course, if your chassis does not heat well, it can not blame others.
4.17. Here are some of the mistakes that someone has to make:
1. High temperature is affecting the magnetic head of the resistance sensitivity, so it will produce read and write errors, and permanent magnet is not related.
2. The so-called thermal expansion will not close the disk and the magnetic head distance, because the head of the flight is aerodynamic principle, under normal circumstances always and the disc to maintain a certain distance. Of course, if you vigorously hit the hard drive, then this vibration .....
3. The so-called seek means that the hard disk moves from the initial position to the specified track. The so-called reset action is not always happening. Because the physical position of the track is stored in the CMOS, the hard drive does not need to move back to the 0 track and start again. As soon as the head is started, the so-called reset action is completed, unless you restart the computer, or the reset action will not happen again.
The disk structure of the 4.ide hard disk and the SCSI hard disk is similar. SCSI hard disk interface bandwidth is larger than the same era of IDE hard disk, and often SCSI card will often have a CPU-like things to slow down the main CPU occupancy rate. That's it, so Seagate will use its SCSI hard drive technology on the IDE's hard drive.
5. The hard disk reads and writes are in the cylinder sector. The cylinder is the concentric track with the same radius of all the magnetic planes in the entire disk, and dividing each track into several zones is called a sector. The write operation of the hard disk is to write a sector first, then write the next sector of the same cylinder, and the head will not move to another track until a cylinder is fully filled. So the file on the hard disk storage, not as the general people think, is continuously stored together (from the user to see together, but from the bottom of the operating system, its storage is not continuous). So FlashGet or Ed open a lot of threads, the head of the search is generally no more than you play the game while listening to the song big. Of course, this is only a simple download or upload, but in the process, who can guarantee that they will not start to read and write to the hard disk software? Maybe a lot of people like to download while playing games or listening to music? Needless to say, Windows itself needs to read and write virtual memory files frequently. So, with FG download, ed or, the hard disk of the torture and normal compared not too bad.
6. Say FlashGet why too many threads will be bad and Ed why hard drive Read and write frequently. First of all, a lot of threads, CPU occupancy rate is high, paging action is frequent, so the virtual memory read and write frequently, as to why, learn the operating system principles should know, I do not say here. Where's ed? Download a file from several people at the same time, and several others are downloading your files at the same time, which is similar to FG open multithreading. So the hard drive lights flash. However, now the hard disk is cached, the data is not immediately written to the hard disk, but first stored in the cache, and then to a certain amount of one-time write to the hard disk. In FG, how to set all good, in fact, is written in the cache. But this process also requires CPU intervention, so the setup time is too short, the CPU occupancy rate is also high, so the hard drive lights are still flashing, because the virtual file is read and write.
7. Hard disk read and write frequently, the head arm in the Seeker servo motor driven under the movement of frequent, but for the machinery of this wear and tear although there is, in fact, little. Unless your hard drive itself has mechanical problems such as arm deformation and so on (parallel imports the most common fault). The real loss is in the head, the changing current will cause its aging, but compared with its life .... should also be within a reasonable range. The head hits the disc unless it vibrates.
8. The most serious impact of the high temperature is the mechanical circuit, especially the circuit board outside the hard disk, the upper integration block at high temperature will accelerate aging. So one of IBM's glass hard drives, though there are bad lanes, is missing immediately with a piece of software. Again strict focus, change block board, also normal, that is the reason.
4.18. In short, the hard disk will be due to poor environment and improper maintenance of life, but this is definitely not software error. FlashGet or, ed or FTP, they are hard to read and write frequently, but not more than you generally play the game generally listen to the music to the hard disk damage. If you speak more clearly, the so-called wear and tear of the hard disk can be ignored. Do not see the hard drive lights flashing, That's where the worry is. Otherwise, the server that provides the Web service and FTP service, their hard disk reads and writes the big, can not play the game normally, under the software's hard disk comparable.
4.19. The hard drive has a parameter called continuous trouble-free time. It refers to the maximum amount of time the hard drive is running from the start to the failure, in hours, and the English abbreviation is MTBF. The MTBF for a typical hard drive is at least 30000 or 40,000 hours. The specific situation can be seen by the hard disk manufacturer's parameter description. This continuous trouble-free time, you can remove yourself, to see how many years. Then everyone think about it, their hard drive is usually the longest continuous work for how long time.
4.20. I am currently using the machine, has been continuously booting for 1 years, in addition to a few times in the middle of the shutdown for more than 10 minutes to clean the dust, never stopped (using gold to 6 generation 40g). In addition, there are three servers using SCSI hard disk, is not stopped for two consecutive years, the heat of the hard disk is not the usual IDE hard drive comparable (10,000 rpm drive AH).
4.21. Finally, add a few points:
1. Hard drives should not buy parallel or rework goods. Parallel imports are extremely unsafe during transport, although seemingly non-damaging on the surface, but may cause damage to the machinery during transport due to various factors. The rework of the goods is even more needless to say. To be honest, those who complain that the hard disk is prone to damage, you should see for yourself first, whether your hard drive is these goods.
2. The working environment of the hard drive needs to be neat and tidy, especially to avoid the use of hard drives in frequent power outages and dusty environments. The chassis should clean up the dust every other month or two.
3. Hard disk mechanical Most afraid of vibration and high temperature. So the environment is better, especially the chassis to be strong, so as to avoid the common earthquake too big. Don't stagger the computer table.
4. Always defragment your hard disk. There is a misconception that most people think that hard disk fragmentation will increase hard disk wear and tear, not really. The increase in hard disk fragmentation itself only makes the hard disk read and write more time than fragments, the loss of the hard disk can be ignored (I just say here is the fact that the server on the network, they use the most operating system is UNIX, but there is no disk defragmentation software under UNIX. Even Microsoft's NT4, itself is not). However, because of the frequent movement of the head, resulting in increased read and write time, so the CPU's page-change action is frequent, and the virtual file (here is actually the correct version of the page file) read and write frequently, thereby aggravating the hard drive head seek load. This is the disadvantage of hard disk fragmentation.
5. When the hard disk read and write as far as possible to avoid sudden power outages, cold start and do other things that add to the CPU load (such as when playing games to listen to songs, or in the download to play a large 3D game), these damage to the hard disk than the average people think of the larger. I will not say the reason, typing is too tired.
6. In short, as long as the usual attention to the use of hard disk, hard disk is not so fast and we say byebye. Of course, if the quality of the hard disk itself is not, then there is nothing to say.
Two. How is BT used?
Generally speaking, there are more and more software that support BT protocol. For example: Thunderbolt, Baidu Network disk, BT software, including some players. A simple example of how BT is used.
First we need to download the required BT seeds, BT seeds Unlike magnetic links can be directly online into the download.
1. How to use BT for Thunder:
1.1. First make sure to install the Thunderbolt, open the Thunderbolt, click on the upper left corner of the new, as shown in Figure 1:
Or right click on the BT seeds to find "open mode", select "Thunder" Download. In fact, the two are the same, compared to this relatively simple point.
1.2. Thunderbolt Open BT Seeds A selection dialog appears, as shown in Figure 2:
The BT seed is a magical file that contains multiple files within it. At the time of downloading, we simply tick the box in front of the required resources and do not need to directly cancel the ignore. Generally we need the resources are the largest, followed by the format of notes, choose the time to pay more attention on it.
2. How to use Baidu Cloud network disk offline download BT resources?
With the function of offline download resources of Baidu Cloud network disk, we can download some bt video files, games, software, music and so on conveniently offline. In order to achieve the use of network disk link high-speed download video file resources, in this article I will give you a detailed introduction to the use of this feature.
2.1. First, the first step is to prepare the seed BT file to be downloaded and put it where we can find it, ready to use. Then we open the Baidu Cloud network disk. Click Upload as shown:
To find the uploaded bt seeds, open the Select Download button. The BT seed is a magical file that contains multiple files within it. At the time of downloading, we simply tick the box in front of the required resources and do not need to directly cancel the ignore. Generally we need the resources are the largest, followed by the format of notes, choose the time to pay more attention on it.
2.2. Or faster, right-click on the BT seed selection "upload to Baidu Cloud network Disk", and then find the uploaded bt seeds, open select Download. The BT seed is a magical file that contains multiple files within it. At the time of downloading, we simply tick the box in front of the required resources and do not need to directly cancel the ignore. Generally we need the resources are the largest, followed by the format of notes, choose the time to pay more attention on it.
Three. What is the Thunder download link?
1. Thunder Download link is the resources of some websites, download link address is converted to support the Thunder download URL, convenient for us to download quickly.
Four. How to use the Thunder download link?
1. Thunder Download link is "Thunder" beginning, as long as the URL copy, open the upper left corner of the Thunderbolt "new Download", Paste now can.
Five. What is a magnetic link?
1. In short, a magnetic link is a special link, but it is not the same as traditional file-based location or name of ordinary links, it is only through the hash results of different file content to generate a plain text "digital fingerprint" and use it to identify files. It is similar to the common barcode on consumer packaging, the difference is that the "digital fingerprint" can be generated by anyone from any file, it is also doomed to "magnetic link" does not require any "central organization" support (such as: BT Tracker server), and recognition accuracy is very high. So anyone can generate a magnet link and make sure the files downloaded through that link are accurate.
To put it more simply: "magnet:?xt=urn:sha1:ynckhtqcwbtrnjiv4wnae52sjuqczo5c" like "Magnet:?" The beginning of the string, is a "magnetic link", its icon on the Web page like a magnet, it is easy to identify.
Six. How do I download magnetic links?
1. Direct download
When we see the link at the beginning of the page magnet, indicating that it is a "magnetic link" download button or link, directly click on the Thunderbolt will start to obtain the magnetic link information, then you can pop up the corresponding download window.
2. Right-click to download
We can right click on the magnetic link, select "Use Thunder Download", then Thunderbolt will start and set up a task.
3. Copy the download
In addition, as long as the thunderbolt in the background to run, and turned on the Monitoring clipboard function (we have been set up earlier), we directly copy the magnetic link content, then Thunderbolt will also sense and directly pop-up window
4. Manual download
We can click the "New" button on the Thunderbolt main interface and select the "Magnetic Link (Magnet) task" command, or directly select the "file" → "New Task" → "Magnetic link (Magnet) task" command, and then enter the magnetic link.
5. Precautions
It is worth mentioning that "magnetic link" is the use of the DHT network to index the files that need to be downloaded, so in some circumstances, "get the Magnetic Link information" for a long time, or to obtain the problem of failure. Since there is little accumulation of experience in related issues, there is no clear solution in addition to retries.
Seven. What is an electric mule?
Introduction of electric Mules:
At the dawn of May 13, 2002, a man named Merkur was dissatisfied with the original eDonkey2000 client, believing he could do better. And then he did it. He gathered a lot of developers around himself, and the emule project was born. Their goal is to preserve the essence of edonkey, add new features, and make the graphical interface more friendly. They cannot imagine the impact of the decision at this time ...
Today, emule is one of the world's largest and most reliable point-to-point file sharing clients. As it pursues the policy of developing source code, many developers have been able to contribute to the emule project. With the release of each release, emule's developer Network has become more efficient.
Significance
EMule (electric Mule) comes from a kind of animal called "Mule", reminding you that it's kind of like a donkey guy.
Update
emule is not regularly updated and upgraded, usually once a week to three weeks, but not always.
Function
1. The client uses several networks to establish a reliable transport network (ED2K, source Exchange, and Kad).
2.Kad is in the open beta phase, and the EMule 0.42 version includes the Kad feature.
The 3.eMule queue and credit system ensures that everyone gets the files they want by uploading files and giving back to the entire network.
4.eMule is completely free, and it never includes adware, spyware, and rogue software. We create emule for pleasure and knowledge, not for money.
5. Each downloaded file will be automatically checked for damage to ensure the correctness of the file.
The 6.eMule intelligent Damage control system helps to quickly correct damaged parts in transit.
7. The automatic priority and source management system allows you to download many files at once without having to monitor them all the time.
8. The preview feature allows you to view the video or compress the contents of the file before the download is complete. When previewing videos, we recommend that you use the video Lan Client.
9.eMule Web Services features and Web servers give you fast access to the Internet.
10. You can create catalogs for the files you download, and organize and manage them.
11. To find the files you need, emule offers many ways to search, including: Server Search (Local search and global Search), Web-based search (Jigle and Filedonkey), and Kad (test).
12.eMule allows you to query with very complex Boolean operators, allowing you to search for files more flexibly.
13. Through the information and friends system, you can send messages to other users and add them as friends. In your friends list, you can see if a friend is online.
14. With the built-in IRC client, you can chat with emule users all over the world while downloading.
Eight. Use of electric mules tutorial:
1. Download emule
emule Official website Emule-project has a multi-lingual version of the official emule (including simplified, Traditional Chinese) available for download. You can also search for EMule modified version (EMule Mod) using Xtreme.
2. Installing emule
emule installation is simple. The installation interface is available in multiple languages (including simplified, Traditional Chinese). According to the choice they say.
Double-click Start installation (installation path, the path has been set, do not change), you only need to read the instructions, click on the bottom right corner of the [accept]-[unzip], until the installation is complete. [3]
3. Shared directory
emule's shared directory is determined by your settings and may be in the following folder (where the drive letter depends on your Windows installation disk):
C:Program Filesemule;
C:userspublicpublic Downloadsemule;
C:usersadministratordownloadsemule;
C:documents and Settingsadministratormy documentsemule Downloads.
Under the incoming and temp folders. The "Extended Settings" option allows you to choose how to share your configuration and downloads with other users of your windows to change the path of the shared directory; The path to the shared directory can be further arbitrarily modified in the "directory" of the options " The shared Files panel also adds the directories you want to share.
4. File download
After running emule, you can double-click the connection server yourself (you can also choose to automatically connect to the server after you turn on emule in the options). After successful connection, click the ed2k link in the browser, emule can download the linked resources automatically, or you can copy the link to emule download.
File name: Although the most intuitive eye-catching, but the least important, the role is only easy to search;
File size: There is no use, mainly used to distinguish the clarity of the film, the general situation is the bigger the better;
File ID: Also known as hash, this is the key inside the ed2k link. Many files, even if their filenames are different, but as long as the file ID is consistent, the electric mule server is considered the same file. If you want to know if the file you wish to download has already been downloaded before, the only way to do this is to record the file ID of each download file in your text file (it is easier to save the ed2k link), and then download the file ID of the file you want to download (not to find the ed2k link) Whether or not it can be judged in this file.
5. Setting Up Associations
You need to cancel the connection of the ed2k link to the download tool such as Thunderbolt. Example: Open Thunderbolt-[config]-[monitoring settings], cancel the "emule download" tick.
Then click on the "Associated ed2k link" in the E-mule interface: [Options]-[general]; [File]-"Watch the clipboard for ed2k link" tick, which completes the association of "ed2k link".
Later open IE, see ed2k link address, directly click Download or copy to add the download task to the electric mule.
Finally, make a few additional notes:
Download the file while you are also offering someone else to download. Download the friends, if you want to help others to download, you can rename the file, but not in your download directory or the shared directory to delete, so as to ensure that everyone download faster and faster. The purpose of electric mules is "I for everyone, everyone for me", the same file sharing, download the more people, everyone's speed faster. This is different from pub and FTP.
Electric mules support multi-file download, you can download a lot of files at the same time. Be careful to download shared people as much as possible, i.e. files with more sources.
6. Uploading Files
1. The files you downloaded by e-Mule
The first thing you download is also available in the upload, if you want to publish the ed2k link to this file. You click the menu "Share", if the file is not in the list, you can refresh it and then find the file you want to publish. Click the right mouse button, select "Copy ed2k link to clipboard", and then advertise it elsewhere.
2. Your unique file
You first copy the file into your machine inside the incoming directory (or the shared directory you specified), and then click on the "Share" menu, "Refresh", you can see the file you want to upload to the Electric Mule server (in fact, the file is not uploaded to the server, or in your own computer). It is then published according to the method described in the 1. In fact, even if you do not publish the document ED2K link, if you can search, you can also download, published just for the convenience of everyone, improve everyone's download speed.
Search for files
Use mules to download movies, you can not see the movie all the life. I calculate, if you 1 minutes to see 1 (too exaggerated), from birth to live to 100 years old, every day not to eat not to drink until the movie look dead, a total of about 50 million movies can be seen. And at this moment, I am using electric mules to search the number of downloadable files more than 9000多万个, if 10% is a video file, there are 9 million, which is only the number of downloads today. People's age is limited, and every moment there is a steady stream of video files to join, obviously you will never catch up with the pace of development. Search is actually very simple, will use Google and other search engines, it should be electric mule search, but a search page, a search file.
Click on the "Search" menu, enter keywords in "name", "category" can choose any (recommended way) or video (can't search dat file), "Method" Best Select "Global (Server)", then "Start", you will find a list of more than n downloadable video files that match your tastes.
It is best to select the "source" more than the film, double-click to download.