After some tinkering I got H.264 hardware assisted playback going on my system last week.  I thought I'd see how some of my FairUse Wizard rips worked and when I tried them, well the grahpics driver or something didn't like them much.  I'm using MPC_HomeCinema version which does have some restrictions on the content it can accelrate with DXVA and I'm assuming maybe it's hitting that?

Does anyone know what settings might work?  I normally to H.264/AC3 in an AVI container and I'd like to try and keep to those lines if I can.  I don't mind switching containers but I would like to not re-encode the audio if I can avoid that.

Thanks!