Annoying beeping

[UnseenClass]

For some reason everytime I watch a dvd on my computer i get this annoying beeping every minute or so. I'm running a samsung dvd/rw combo drive through VIA Envy audio..but i think it's one of the settings i'm using..or maybe interference...or maybe just shitty speakers..they're altec lansing 5.1s. What do you guys think?