[Christien]

This doens't exactly match your description, but may help: winrar can be set to break up a large file into several smaller files (this used to be more popular in the days of diskettes and dialup internet access). It creates a first filename.rar, then several sequential files, filename.r00, filename.r01, filename.r02, etc. So filename.r30 sounds like the 30th sequential file in the entire archive. If you double-click the main filename.rar file and extract the contents (probably one large .avi file) it should automatically move on to the sequential archive files. I'm not too sure of the file structure for avi's, but maybe the audio data is stored later in the file than the video, which would explain why one uncompressed archive yielded only video.

Once you have the full avi file extracted, you'll need dvd authoring software to burn it to dvd. Some dvd players will recognize a properly formatted video cd (vcd), for which you can use a regular CDR. Older versions of Nero (like freebie versions that used to come with CD burners) can burn VCDs and SVCDs (super video CDs, basically 2 cds for one movie) but who knows what dvd players will support them. I use Nero Vision, which is part of Nero 7 - just drag and drop the video file into it, a couple more clicks, and it's burning your dvd for you.

Hope this helps!