The common folder names in SD cards and their functions are as follows:
System data Class--system file storage related folders
1. Android_secure: The official APP2SD of the product, stored the relevant software to use authentication verification, after the deletion of the SD card software will not be used.
2, Android: Storage of important program data, such as Google:map map cache, mistakenly deleted after the map needs to be downloaded again.
3, Backups: Contains important backup files, such as contacts exported to the SD card will be imported into this folder.
4, Bugtogo: The system occurs when the problem will form some report files, stored in this folder.
5, Data: Cache folder, similar to Android. For example, screenshot Assistant screenshot is saved in Datacom.edwardkim.android.screenshotitfullscreenshots.
6, LOST. DIR: Files that are missing or wrong on the card are moved here, and this directory is deleted and automatically generated.
7, Systemappbackup:systemapp remove (deep uninstall) after the backup system files, backup files saved directory.
8, Bugreports: Upgrade the system or brush machine, system and program to occur compatible error reporting list (including memory use full content) will be saved in this file, restart the machine can be deleted.
9. Keepsafe: Hidden class software, encrypted save file address is stored here.
10. Thumbs: Browsing or using a software, as well as the use of a folder to record the number of times and content of the files, randomly generated, the need for regular continuous cleaning, long time does not clean up a large number of storage cards to occupy the effective space.
11, OpenFeint: Open the Connection network after a startup program, it is widely implanted mobile platform release software or games, is updated download or comment feedback information of the record address, can be deleted.
12, com: Play class software to watch the playback of film and television program generated files will be stored here, you can reflect the production side feedback information can be deleted.
13, Download (Download): Capital Letter is the network connection download file directory, lowercase letter is the mobile phone itself (Bluetooth, near the field, etc.) storage download transmission files, do not mistakenly deleted.
System Tools Class--system with tools related folders
1. Albumart: The cache folder for music album cover.
2. Albums: Cache folder for album thumbnails.
3, CMP: Music cache folder.
4, Playlists: The cache folder for playlists.
5, DCIM: Camera random cache folder, recording function settings parameters, need to clean up in time. Some of the third party camera software will be taken out of the photos are also stored here
6, VPN:VPN data cache directory.
7, My Documents: mobile phone enable a variety of program task records of documents, need to be regularly cleared, long time does not clean up will occupy the larger SD card memory.
8. Nomedia: Mobile phone hidden audio, picture folder will be shown here, you can set up in the relevant folder.
9, Media: Use the telephone call recording software or online browsing video and other media generated audio file record archive will be saved here.
10. Medieval_software: When Bluetooth transfer software is enabled, log the directory where the task saves the file.
11, extracted: Decompression software default decompression directory.
Third-party Application class
1. Mobo:moboplayer cache files.
2,. QQ:QQ cache files that need to be purged periodically.
3. Quickoffice:quickoffice cache files.
4. Switchpro:switchprowidget (Multi-key switch application) cache file.
5. Ucdlres:uc Thunderbolt's cache file.
6, Baidu: Palm Baidu, Baidu Input method, such as the cache folder.
7, Etouch: Easy to cache folder.
8, documents:documents to go of the related folder.
9, Gameloft:gameloft game packets stored in the folder.
10, handcent:handcent (super SMS) Data folder.
11, Handycurrency: Currency exchange rate-related folders, installed Handycalc (scientific calculator) will have.
12, Ireader:ireader cache folder.
13, Kingreader: Read the useful cache folder: Downloaded files and applications are here: Delete the attention to see
14, Lazylist:applanet cache directory, prudent use.
15, Moji: The cache directory of ink weather.
16, Musicfolders:poweramp generated by the cache folder.
17, Openfeint:openfeint cache folder.
18, Picstore: Image browsing software to establish a directory.
19, Renren: Renren client's cache folder.
20, screenshot: Screen image saved directory.
21, Shootme:shootme screen after the picture file saved directory.
22, Smartpixgames:smartpix Games Production game cache folder, such as Jewellust.
23, Sogou: sogou Pinyin Input Method of the random cache folder, you can delete.
24, speedsoftware:re File Manager's cache folder.
25, Talkingfriends:talking Tom (Talking Tom Cat) recorded video files saved in the directory.
26, Tencent: Tencent software cache directory, such as QQ. (with the above.) QQ folder is not the same)
27, Titaniumbackup: Titanium Backup of the program saved by the directory.
28, Tunnybrowser: The feeling is the Dolphin browser cache directory, but why do you call this name? Tuna Browser ...
29, Ucdlfiles:uc Thunderbolt download file save directory.
30, ucdownloads:uc browser download file cache save directory.
31, Vie:vignette (Halo Shadow camera) cache directory.
32, Yd_historys: Youdao dictionary Search History of the cache directory
33, Yd_speech: Youdao dictionary word pronunciation of the cache directory.
34, Youmicache: Deleted will be automatically generated, Yau Rice ads cache directory, advertising programs embedded in its program.
35, the Glu:glu series of games of information package storage, such as 3D Deer Hunter, brave two brothers and so on.
36, APADQQ-IMAGES:QQ for pad cache directory.
37, Dundef: Dungeon Keeper's packet.
38, Kuwomusic: Cool Music related folders.
39, Mxbrowser: Roaming cache directory.
41, Ttpod: Every day the beautiful cache directory.
42, downloaded: Brush miui, upgraded zip brush pack, kept in Downloaded_rom.
43. Estrongs: When you use the ES File Manager to extract files, there will be this cache record. It reflects the use of the process and can be deleted.
44, Silentr: Use the backstage recording software, the own audio folder, the subfolder phonecalls, the regular management clears
45, 3d-compass: This is the use of virtual compass software, generated scene pictures (images and numbers more detailed) folder, you can clear.
46, PDF: Portable Document Format, PDF Reader storage folder.
47, Zidan Youdao: Is the dictionary of thesaurus file storage, deleted to download the thesaurus.
48, Callrecords: The use of third-party mandatory two-way recording software (mobile phone is not root), audio files to save.
49, Vplayer Pro: is Mobo and other video players after the use of the record regularly deleted.
50, Beweather (VIDEOS): Is the meteorological software (such as blackberry weather ... etc.) additional download audio or animation icon storage address, deleted will not show silently.
51, thumbnails: Use the third party player to watch handheld mobile video media, storage click Pause, random screenshots and file storage generated content.
52, Iquran (META2): Koran browsing text and audio storage files.
53, Autodesk: Mobile phone system with memory Command Generation folder: Store images or write a document, you can view, back up or delete.
54, pixlromatic: Late effects processing picture software Pixlo, storage folder, open can preview to see the effect.
55, Mapbar: Map bar navigation map storage files, there must be the main file and different areas of specific maps, the main document deleted to be heavy!
56, Anttts: Is the use of the German navigation to choose the type of voice navigation, language download address, deleted the voice prompts will be lost.
57, Kingsoft: Kingsoft PowerWord dedicated folder to download and store Word library, update the extension of the text (the official release of amendments to add).
58. Nightvisioncamera: The address of the night photograph of the camera.
59, DSA: Electronic dog Special folder, included in the regional road probe monitoring location information, will be updated regularly. has been tested with the gold, Chemleader early warning, the effect is good.
60, Apexlauncher: Cutting-edge desktop Launcher folder, location in andriod/data/, place the desktop settings backup bak file.