Does anybody know for sure why some episodes on the DVD's have sound problems? I don't remembre which episode I was watching yesterday on year 7, but the volume kept flucuating, and I know that it wasn't the only episode that's done that for me. I wasn't sure if it was my receiver going out or if there was some problems with the disk in terms of taking such old episodes and trying to digitalize them?

Thanks!

To my knowledge, I have never had any problems with my season seven DVDs.