mh, i dont think in mpeg2 ;) i have seen macroblocks on my 23''cinema display and on the 40" too. And that was "quality slower"? the problem was that BD rebuilder said, oh about 5 hours content? why not using low bitrate:) to fit it to 25 gb.. Maybe the tool get confused by the terminator 2 disk? there are diferent versions of the movie on the disc... i dont know