Recording Audio from Computer

I'm trying to make a music file out of a song clip for a tv show. I have the show, an .avi, on my computer, and am wondering if there's any program that will extract a portion of that audio, or record sound internally.

http://www.dvdhelp.us/index.html?htm...html~mainFrame

I have a similar question, how do i record streaming audio in good quality.

http://all-streaming-media.com/record-audio-stream/ may be helpful depending on what kind of audio stream you're ripping

I tried those programs, and others, but after I record, I just have silence for the files. Does this have to do with my sound card maybe?

in cool edit pro, simply click "extract audio from movie"
or in virtualdub - save wav

There is some software called virtual audio cable that will let you make a digital copy of the sound the computer is making.

thx 4 helpful info