Needed a new DVD because my classic old Wharfedale was getting too awkward since the remote started to fail. Someone pointed me at this because of the card functionality, I have several CF devices including a camera and it seemed like a neat idea. It has played everything I've thrown at it from DVD-R movies and CD-R music, to MP3 and DIVx AVIs on CD-R data form, passing JPG CDs, VCD and R1 DVDs on the way (with a simple region hack that can be found on the web) A friend reports that with movie files of 1Gb in size held on DVD data discs it stops playing after 1Gb, which ties in with the documented limitation of 1Gb CF cards - presumably it has some sort of buffer or addressing that fails after this limit.
Switching between card and disc is dead easy, a single press on the remote, and navigating the file structure of data discs and cards is easy once you get the hang of it, although long file names are truncated
Other than that, the only features I can think of are that it does not seem to remember its place in a movie when it goes into standby, unlike the Toshiba models, and I don't think theres a slow playback function (but repeated pressing of pause jumps one frame at a time.)
Picture and sound quality are both excellent, easily a match for my old Wharfedale wcich was a budget standard-setter in its day. Also it plays DTS soundtracks if you have a suitable decoder. Sound and video are correcly synced and I have not seen a problem with layer-change pauses. Output is comprehensive - SCART, Composite, S-video, digital audio, stero pair, and it supports both forms of component video output, switchable from the menus!