I'm not sure if these codes are printed on the packaging or not, but these are the codes for the two replacement DVDs (R2):
The way to tell that these discs are 'good' are to look at the colour of the writing on the disc. Disc 2 and 3 now have white writing instead of black and the codes respectively read:
BTTF2 = 903 027 9B /R1
BTTF3 = 903 027 9C R2
Sorry if those don't help - I've not read anything about changes in packaging
I was considering ordering the box online, but don't want to get lumbered with the early releases. BTTF 2 has had the original and one re-release whereas BTTF 3 has had the original and two re-releases!
I may see if I can pick them up via forums - then the seller will be able to confirm the versions. I can't see e-tailers being overly helpful with this kind of thing! Although, I may give play or cd-wow a try sometime soon
J