there should be a seperate file for the subtitles. If there isn;t then its possible they are mixed into the image making it impossible to extract (as they are just a picture)
The avis I'm working with don't have separate files for the subtitles, so I guess they're burned in. I don't want to remove the subtitles, I was just trying to work around a problem wherein the subtitles go beyond the screen when I convert the files to SVCD/DVD. And I thought it would be nice to use the subtitle on/off feature...
Maybe I should post the original problem in a new thread.