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4-25] I can't copy a VideoCD




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This article is from the CD-Recordable FAQ, by Andy McFadden (fadden@fadden.com) with numerous contributions by others.

4-25] I can't copy a VideoCD

(1998/08/29)

If you put a VideoCD (White Book) into your CD-ROM drive, you will see a
bunch of files and directories like you would on any other CD-ROM. In
fact, with the appropriate software installed, on some platforms you can
double-click on a file to play the video.

In practice, however, the video files are stored on separate tracks, using
CD-ROM/XA MODE-2 FORM-2. This allows more data to be stored on a VideoCD,
at the price of less error correction. If the video is short enough, you
may be able to copy the disc as a collection of files, but some players may
be unable to play back selections if the original disc had more than one
track.

You need to use a program like Roxio's CD Copier or GoldenHawk's CDRWIN
to copy the disc track-by-track, preserving the mode of the original.

If your drive only supports track-at-once recording, you may have trouble
copying VideoCDs because the starting address gets shifted when the drive
writes a gap between tracks. NTI's CD-Copy (section 6-1-12) gives you the
option of dropping the last part of the previous track to preserve the
start position of the next track.

Note that MODE-2 FORM-2 holds 2324 bytes of data per sector, so instead of
a total capacity of around 650MB, you can put closer to 740MB on a disc.
If you don't record the VideoCD data files in the correct format, you will
find yourself running out of room. (The extra space is gained by throwing
out error correction codes that aren't necessary for video data. Writing
ordinary data in this format is not recommended.)


 

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