[Alanmelon]

My set up works perfectly as follows;

Recorder settings as above

RGB Output enabled on stb

SCART 1 from stb to DMRE55>television

SCART 2 > Audio breakout > Home Cinema Amp (but you could use it for whatever)

Have you set AV1 output in the recorder settings to RGB, and the TV aspect to match that of your stb output (16:9), oh not forgetting your TV set up to RGB on the AV input channel from the DVD recorder.