A lot of these failures have been fixed in recent MCEB releases. But I just got a WMC recording of a new show last week that still manages to choke the conversion process. Same as previous failures, the log file is huge, mostly consisting of "unknown header" messages. As usual, the video, audio, and captions all look fine when I play the file on WMC. Log file link (on SkyDrive):
http://sdrv.ms/M2t4nW
http://sdrv.ms/M2t4nW