Any sound you can hear coming out of your computer is being converted from digital to analog before it reaches the speakers. There is going to be an audio device driver of some kind that is receiving that digital stream, UN-ENCRYPTED, for it to work. Any such data can be intercepted and a copy saved to the hard drive as a WAVE file.

A program, for which I cannot remember the name, that does this very thing, has been discussed here a number of times. Just search around. It can also be used to save streaming internet radio audio. Pretty much anything that is going to produce a sound.

If someone is looking for a similar tool for their Macintosh, Rogue Amoeba make a program called Audio Hijack (www.rogueamoeba.com). There is also at least one other program that can save streaming content from iTunes to a file.

Bruno

Oh! I think it's called Total Recorder. Don't have time to check right now though.