musicvid10 wrote on 3/3/2009, 1:05 PM
"How do I determine what codec the other application used,"
Use MediaInfo or Gspot, both are free.

"- then how would I get Vegas to use that codec ?"
Find it on the internet, download it, and install it.
If Vegas does not recognize the new codec, try another source.

Onr of the most common AVI capture codecs that does not come packed with Vegas is called MJPEG (not to be confused with MPEG. They are two different things). There are others.