On Mon, Dec 14, 2009 at 09:56:57AM -0800, James Board wrote: > I also used '-alang en' to select the english audio track. I'm not sure which tracks '-aid 128', '-aid 129', etc refer to. On that topic, is there an easier way to determine, with mplayer/mencoder, how many audio tracks a VOB file has, and what language those tracks are in? Read the doc, especially about mplayer -identify > Can I assume that 'alang en' will always work right and select the english track? No, as answered by someone else > I'd like to automate this process for my entire DVD collection, so I'd rather not have to test each file. Then, I'd advise you to use existing scripts, with consequent userbase, because, even keeping inside DVD-Video specifications, you can have to encode many different kind of input. Also, please fix your lines length.