<<<this seems to have nothing to do with my question.>>>
Yes, it does. Both of these programs insert themselves at the end of the computer playback pathway. No matter what the computer is doing or playing, a sample of it is captured by them and recorded. It's "What You Hear" on vitamins.
There in a free version for the Mac called, I think SoundFlower or something like that. There is a free version of PC Total Recorder, too, but they bury it to make you buy the license.