Cool.I still had problems at 600 and I'm at 800ms. Now it works most of the time but sometimes needs the odd seek to get it working.
I think PRIME have made [another] change to their encoding. I have no buffer configured, and PRIME picture won't even start for me tonight. That is a change from last night.
[edit: with LAV, even 600 ms wouldn't make PRIME start... but flick to Cyberlink PDVD 10 codec and all is fine]
[edit2: Maori TV also seems to be problematic with LAV tonight]