Peter,
I don't know of any software only MPEG converters. However, for around US$3000
and US$20,000 there are boards that will convert stuff to MPEG files. The
higher priced one works on realtime on source video, the lower priced takes
longer and is lesser quality. If you would like more info I could give you the
phone numbers etc.
Actually, there is a software-only MPEG system in the public domain on the
Internet, I know I've seen versions of it for the Mac and Windows and X and the
Amiga, but I don't remember if they include any conversion to MPEG other than
something probably based on the PBM conversion tools, which means they're all
command-line based.
John,
I've saved your message for future ref., although it would be nice to have such
utilities in the libraries here. Command line would be fine I think.