Having trouble getting my PS3 to recognize MP4's in WMP 11.

Hello all. Recently I have been taking my TvonDVD box sets and using handbreak to encode them to MP4 format. They are using the H.264 (x264) video codec with a 1500 kbps bit rate. The audio codec used is AAC with a 160 kbps bit rate. As far as I know this should be supported by the PS3. I set up my Windows Media Player 11 (patched to play MP4's) as a media server and used the PS3 to locate it. I can view the 3 sample videos in media center but the MP4's I have made show up as unsupported format on my Ps3. I can view the MP4's in WMP 11 though. Any idea what I am doing wrong? Thanks in advance!

Did you use the PS3 preset in Handbrake? The PS3 preset should work with the PS3. I don't think the PS3 can handle the 2 pass encoding in Handbrake so you have to use the PS3 preset.