If there are subtitles on the movie and its just an .avi file then they are embedded into the stream and not easily removable (Probably possible, but whatever should be under them won't be)

To make an .avi into a DVD you could try these steps (they are ABC )

http://www.gnutellaforums.com/showthread.php?t=64458

Bitzi is a database where people submit ratings and comments on various downloads.

To find out if a download is rated high or maybe is just plain crap use Bitzi. Right-click a search result & choose Bitzi lookup.

Find out more here: http://www.gnutellaforums.com/showthread.php?t=57128