I'm looking for a format and a usable bit rate that Vegas renders to and which the PS3 will play in full 1920x1080p mode. I "might" have got a render using the mpg4 by selecting "use source resolution" but I can't confirm it is 1920 and so far I have not found an optimal bit rate. I was surprised that my PS3 would not play .m2v files but maybe I got a bad render??