rjxox, I can't speak intelligently about your beta/jitter graph, although that is very odd result.
Actually, when I look at jitter again, that is normal jitter pattern for a y000-t02-00 burn on a 716a. I know what to try: change your range on the graph to +0.5 and -0.5 and your beta reading might flatten out. Right now, it's set so narrow that it will make it look bigger than it is, if I'm reading this right.
I used to get pixelation from two things on my system: I did not defragment my drive as regularly as I should have, and I have had two originals I backed up where the originals played fine on the player, BUT when I burned a copy that was reauthored/compressed to my HD, some pixelation showed up. It is sometimes possible that if the original DVD is made by a smaller DVD distributor that it could play fine on a player or on a burner, but then show some pixelation because the original isn't really that good, so when you reauthor and compress the copy to your HD, the pixelation shows up. That was the test 1clickdvdcopy told me to do, as they said if the original was good quality, no pixelation would show up after the compression. After 50 burns with no problem, it appears their advice was spot on. So, the true test is if you see pixelation from your compressed copy played from the HD, it's likely the source isn't great quality. Another possibility is if you have to use a high % of compression that you might get pixelation. 1clickdvdcopy veteran users that defragment their HDs regularly say they have burned copies with up to 60% compression with no pixelation. Some recommend disabling copying "DTS audio," as the Dolby audio takes less space and sometimes the DTS audio being included can push your compression needed too high and result in pixelation. Otherwise, good media can also help. I've noticed that my Fuji 8x DVD+R (y000-t02-00) are excellent and although I've only read of of 3-4 that said it in another forum, that if they burned with y000-t02-00 (as opposed to another brand like Ritek), they never had pixelation trouble where the source was good.
That's as much as I know. I'm not familiar with your brand of Panasonic DVD Player, so I can't offer any suggestions on how to know if it's the player.
Since I started defragmenting my hard drive after every reauthored/compressed copy to my HD (I mean I watch the copy from the HD, burn the copy to DVD, then delete the folder with the files--then defragment), I've not had pixelation problems.
I just reread what FTP said, and it's an excellent idea: take your movie to a friend's house to play on that DVD player. If it plays fine, then your player is 'picky.' I happen to have a Panasonic S25S that seems to play everything well I've burned on RitekG05, Maxell (RitekG05) and Fuji (y000-t02-00). But I also noticed that you said something about TDKs. Here at Best Buys, the TDKs in 50pks are CMC-MAG-E01-00 mid, and they are low quality in my experience.