Bwhite, there are many 3910 threads including the positive ones whith instances of not only macro blocking, but transport problems, refusal to play sa-cd's, or in some cases just some discs ect.
There are many people whith complaints about QC.
The the macro blocking is supposedly not as bad as the 5900, but why have artifacts at all when you can have it all whith the Onkyo/Integra.
I suggest you read through the 6..at least threads on this player and you will realize that there are way too many people having poroblems whith this player overall.
You can also see pictures of macro blocking at avs, which is a whole lot better than somone trying to explain it in words.
I have the Onkyo 1000, and the 480p picture is flawless as far as magnifying artifacts of any kind.
It is the best picture by far I have ever seen on my 110 in dlp projected screen.
Next week when I receive my hdmi/dvi adaptor, I am going to pick up a 3910 for audio and video comparison.
Those that have already compared the Onkyo SP100/Integra DPS 10.5 (Same player) have told me not to bother, but I am going to anyway.
The 1000 has deeper bass, more texture,inner detail and a bigger soundstage than the 5900 whith redbook,the sa-cd playback is slightly better,and the dvd-a is at least equal.
The 1000, is what the 5900 should have been imo, and I finally feel like I have a universal that is worth having modded.
Greg