Before I get too far into my latest project...

[whurlston]

I have a Vista laptop I'll throw it on and see what happens. I forgot to mention that on this machine (The single core 3600+) I had to scale the video window down greatly to get smooth enough playback to see whether or not it was in sync. Running at the full resolution I miss a lot of frames so I could not tell if it was synced or not.

[whurlston]

Tested it on Vista. Still in sync, sorry.

[sub]

Annoyingly it doesnt play smoothly for me. It stutters and skips frames for me. I had the same problem with PowerDVD though.

A friend with a slower setup than me had smooth playback, so it sounds like something funny happening on my setup, but I havent really had a chance to look into what might be causing it though.

[whurlston]

The vista laptop was a C2D T5500, 2GB PC4200 with a GeForce Go 7300. CPU was at 85-90% during playback @ 1440x900.

[sub]

I'm getting 97% on my AMD X2 4600 (dual core) with nvidia 7600GS. So somethings not right.

Maybe I'll check if there are newer nvidia vista drivers than the ones I'm using.

[whurlston]

I agree, that doesn't sound right. Sorry I can't offer you any insight but I somehow doubt that I could troubleshoot directshow issues better than you can.

I do have a copy of the VC-1 reference decoder source if you don't have it and want a copy though.