Fabrice, I still can't see my recorded tv episodes when I go to the transcoder plugin. It shows up in Recorded TV. I've included a screenshot of the data in the database. It may have something to do with me using MySQL instead of MSSQL.
Yesterday I noticed that only dvrms file are shown. I tried to convert to mpeg before transcoding to xvid, but this was not possible, as transcoder plugin seems only to manage dvrms file. Should it be the answer to your problem?
Moreover, I noticed a couple of small bug: on 2 pass xvid transcoding, the plugin show "completed " after the first pass (while ffmpeg continues working on the background) insted of completing the percentage.
Then powerscheduler does not "feel" transcoder plugin running, putting the pc in hybernation while transcoding.
Quality issue: in compressed avi (only tried with ffmpeg) I noticed some issues in movement, as it is not "fluid". I guessed it is because ffmpeg can't get correctly the fps of dvrms file generated by mediaportal (some are seen as 52 fps some others as 0.8 fps). Could it be right?