A lot of people in this forum seem to have in addition to Vegas, DVDA, Sound Forge & even Batch converter. Is there anywhere one can find a complete list of what the extensions are for all of these programs & what they do?

I think that it might be a good idea to get all of the temp files, peak files, bak files etc all in one folder so that they can be deleted all in one go when you're looking for more space.