I use Connect360 (great program btw) to stream video/music/photos from my iMac to my Xbox 360 across my home wireless. Everything has worked great thus far, with the exception of streaming/playing mp4 HD files. They show up on the Xbox 360, but fail to play when I try to access them (error message coming up saying invalid format). However, according to the Xbox site, the .mp4 container is supported. So this leads me to believe that while the container is supported, the actual encoded video/audio within the container is not. Are there any mac (OS X v10.5.2) programs out there that can analyze my mp4 files and tell me what/how they were encoded so I can start to figure out what the issue may be here? Has anyone else successfully streamed mp4 (HD?) files from their mac to a 360? Thanks in advance.