Connected my Denon 1930 dvd to my plasma via HDMI cable yesterday, made some changes in the DVD set-up but was getting no picture or sound. Decided to reinitialise the player to factory settings as i'd not altered too much and all is now working fine. I noticed that the HDMI signal is configured to YCbCr (the default), the other option being RGB. Could anyone let me know which will give best quality picture ? On another matter (DJ Krime came up with an answer previously) could someone reconfirm that as my plasma displays at 768 lines, then i gain no benefit in upscaling dvds to 1080p ? Thanks for any info.