@MrTibs,

What about just using one B frame (for this particular player) :?: If you remove all B frames, compression falls drastically, and so does quality :!:

-kwag

I've treid various GOP formats with the same problem. I think the best solution is to either try one of the other resolutions (below AAAx480) or to got to Mpeg2 at 480x480.

I admit that the B frame problem seems strange since B frames are in both the Mpeg1 and Mpeg2 specs. Stranger still is my Toshiba player which doesn't like P or B frames above AAAx480. Still, you don't know until you try it. There may be a GOP "sweat spot" that I haven't tried.