Just one little question... and I'm not too sure if it falls into the hardware category... my Windows Media Player...or any music program for that matter buzzes at random and cuts out the music. But I don't think it's the music files themselves because I've put in regular CD's and have had the same problems. Any ideas on what the problem could be?
Sounds like a soundcard/driver issue.
I would recommend updating your soundcard driver if there is a new update to be found. Also, make sure the connections on your speakers and to the soundcard are secure.
To narrow down the problem you should open up windows volume control and ensure Microphone and Line In are being muted just to make sure that is not part of the problem.
Hope that helps :D