I just tried to play an X264 video on my 360 and it didn't work. I got:
Status Code 69-c00d10e0
Unsupported playback (or something along those lines).
I tried to put the transcoder to "transcode always" (as I saw in another topic that that worked) but it didn't help. Still can't play the video.
I've played x264 videos before, so I'm not quite sure why its happening now. Any thoughts?