I thought that was because better formats came out... With no improvement on the 'encryption' end as far as I can tell, because I can find bluray rips for any movie that's come out on bluray.
He was being sarcastic. CSS (the pathetic 40-bit "encryption" used on DVDs) was cracked in 1999. Blu-ray wasn't commonplace until 8-10 years later.
Blu-ray's AACS actually is much better than CSS ever was, and as far as I know it hasn't been attacked in either a brute-force or break-the-algorithm sense. But like all other DRM, there are inherent flaws it can't work around. You need only extract a player key and you can freely decrypt the data.
