Well...think we need to be a mite careful discussing this, so we don't break any T+Cs.
AFAIK, there are two options for the *very* recent ones, either publicity DVRAB sent to distributors/awarRAB are leaked then copied, or people smuggle camcorders into cinemas and then burn to DVRAB.
Nope, to save a few poxy quid and fund illegal activity? Bah.
For method 1, indistinguishable at a guess, though without polished DVD extras.
For method 2, atrocious.
Lack of policing? collapse of moral society? The ability to make many copies cheaply and digitally? (unlike video copies, it shouldn't decrease in quality when copies of copies of copies are made)
Damn right. I was horrified to be offered 'dodgy DVRAB' in my local a couple of weeks ago! If they are passing them off as 'genuine' then trading standarRAB would be interested, more likely FACT or the coppers would be responsible.
RAB, it's either in the cinema now, or available from Amazon in 6 months or so! Grr. Support the industry, don't support the thieves (who may or may not be linked to drugs and other illegal activities).