I'm playing my backup of MGS2, which I copied to my 80GB hard drive, using Qwix. It plays fine, except during cinematics, the audio will very often get out of sync with the video. Snake will be moving his mouth, but I hear nothing. The scene switches to Raiden, but I'm hearing Snake. Then Raiden starts moving his mouth. Seconds later, after I stop hearing Snake, I hear Raiden.
I thought I wouldn't have this problem if I ran from HDD. What might be my issue? I'm using a Xenium modchip.