Dennis,
i'm a little confused. The .mzt files in the transcodingfiles\thumbails folder only get created when my TV requests a folder list of video files. Until i turn on the TV there are no .mzt files available. Am i able to check the thumb size/quality of the db version after i run maintenance?
I did try to replace the .mzt file with a better quality version, but it got re-created and overwritten when my TV requested the folder list.
Will spend a bit more time on it tonight.
cheers

Gus