I have the digital copies of my son's blu-rays, and they were always 1 to 1.5GB in size. This Christmas, he got new ones - Monsters University, Despicable Me 2, Planes - and they're all around 4GB. I used to be able to fit about 3 movies on his 16GB iPad with his apps. Now I can only fit one of the new movies. Has something changed in the last year or two?