Hi Salvadore.
Just FYI, I worked out what the root cause was. It seems that the transcoder no longer works with CentOS 5.8 (which we are using for our VoD recording.) I tried CentOS 6.4, however, and the transcoder worked fine.
There’s another thread started by someone else on this topic: Transcoded stream won’t start on CentOS 5.8
Yours,
Henry