Comment 32 for bug 345627

BUGabundo & others,

If you're noticing video stuttering in media players (with or without audio stuttering), it's possible that your graphics hardware's MTRR ranges aren't setup properly, which causes performance issues. It's feasible that this may accentuate audio skipping slightly.

I suggest everyone take a look at bug #314928 (especially those with Intel graphics adaptors) to see if you're affected.