and the Orochi and NESTS collections on PS2.
... what. The G1M2 developed Japanese releases?
Yerp. Both notoriously screwy, if I recall - I'm at work right now, so I can't check my notes for why, but I'll see if I can dig around for a quick answer if you want specifics.
Edit: Specifics, just from a quick search around...
NESTS Collection - No AES intros, nasty sprite flicker (worse than Orochi), weird brightness and contrast problems, graphics appear to be slightly upscaled, etc.
Orochi Collection - '94 has weird lag and voice glitches, muffled audio, sprite flicker, etc.
There's some other stuff I've run across previously, but it took me hours of digging to get a cohesive idea of each one, and a lot of this stuff is highly subjective. Personally, I can deal with *some* sprite flicker, but audio issues, missing frames, and lag are inexcusable, and if the flicker is too constant, it drives me nuts. Some people complain about the 2002/2003 port too, claiming the backgrounds are recolored and blurred, while I think it's fantastic, so your mileage may vary.