Most the of the HDMI sources I capture use AC-3. The PVR2 captures just fine, but it always starts out trying to capture MPEG audio. When it senses the AC-3 audio, it switches, but it takes 10-15 seconds before the capture starts. By that time, the source I want to capture has gone past its start point. If I then "rewind" the source, the PVR2 immediately switches back to MPEG audio, and the cycle repeats. Thus, I can almost never capture the beginning of a video.

So, is there a way to force the PVR2 to always default to AC-3?