Yeah, I think I only had one somewhat minor playback issue w/ one disc from Mad Men Season 1 on my PS3 before, and I rarely updated the software. Only updated it for DTS-HD/MA playback (that was originally missing) a long while back and then a couple other times to test/try some other non-BD-related things.
BD-Live titles could sometimes take a long while to load even on the PS3, but that was when I kept it enabled/connected. I suspect it'd load much faster for those titles if I had disabled BD-Live before -- that's what I do now w/ the Panny BD60, and it seems to load at a reasonable pace even for BD-Live titles w/ that disabled (although I'd certainly like to see it load faster).
Not sure about all rental exclusive versions, but IIRC, most/all(?) of the ones I've seen have some very basic, barebones menus w/ no extra features. I just watched Invictus last night, and that's apparently a Warner rental exclusive (from Blockbuster Online). It had a barebones menu -- and still had the popup timeline thing during pauses. Not sure if it actually had forced previews since I didn't see any by the time I got back in front of the display (after preloading the disc) -- and I didn't get around to fully reloading the disc to check.
_Man_






