I just stated using PMS and love it. The one issue I'm having is all of my videos are being forced to transcode to mpeg2. All my mp4, m4v that are h264/AVC work fine from my old Twonky media server to my PS3. There is no transcoding capability on my old Twonky that runs on a Buffalo Link Station.
When I added the extensions mp4, m4v to the "Skip Transcode for the following extensions" in the Transcoding Settings, the PS3 reports "corrupt file" and stops. So for now I only watch the file types I need transcoded from PMS. The rest from twonky. Any ideas?