Hi Lyndel,
Thanks for the info on XCF image handling. Interesing.

The captured image from the RVIP is sent in 3 or 4 packets, but is reassembled correctly in the pronto. I have verified that the jpg image has (perhaps purposely) a bad JPG header - the one I save from the browser has the same code issue.

It's not really a problem - as I said, I have added a line in the code to remove the bad header from each captured frame. with the bad header gone, it all works fine - I can read the program guide and set record timers,etc without turning the telly on.

I think I just wanted clarification on the PEP behaviour, and to point out that some video transmitters send bad code in the captured data.