Article Title: VCD structure and Mplayer playback. DAT file. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
A VCD disc consists of one or more audio tracks: The first track is a small 2048-byte/sector data track with an ISO file system, which usually contains other information (images, text, etc.) that may exist in the Windows VCD player ).
The second and subsequent tracks are unprocessed 2324-byte/sector MPEG (film) tracks. Each sector contains an mpeg ps packet without a file system. The track of the audio CD is similar.
These tracks cannot be mounted (have you mounted an audio CD and played it ?). Most movies are on this track, so you should first try-vcd 2.
Some VCD discs do not have the first track (single track without a file system ). They can also be played, but cannot be mounted.
About the. DAT file: On the first track of the mounted VCD, see ~ A 600 MB file is not a real file! This is a so-called ISO channel that enables Windows to process such a track (Windows does not allow programs to directly access unprocessed devices ). In Linux, you cannot copy or play these files (they contain some garbage ). In Windows, this is acceptable because its iso9660 driver can simulate reading unprocessed audio tracks in this file. To play a. DAT file, you need the kernel driver in Linux PowerDVD. It has a modified iso9660 File System (vcdfs/isofs-2.4.X.o) driver that can simulate reading of unprocessed audio tracks through this. DAT shadow file. If you use their drivers for mount, you can copy or even play the. DAT file directly with mplayer. But it will not be useful if we use the Linux kernel standard iso9660 driver! The-vcd option should be used. Another method for copying VCD is the new cdfs Kernel Driver (not part of the official kernel), which can display the CD sessions as an image file or cdrdao, A bit-by-bit CD capture/replication program.
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