A specific channel/transponder can't be recorded in mpg format and results in 0 byte mpg files.

h4. Steps to Reproduce
1. Start a recording on the specific transponder ( one is mentioned here http://forum.team-mediaportal.com/empty_recordings_cpespacket_fullbuffer-t23203.html )
2. Stop the recording -> 0 byte mpg files

h4. Additional Information
confirmed by and-81
Forum Thread:
http://forum.team-mediaportal.com/empty_recordings_cpespacket_fullbuffer-t23203.html