I was clearing out some stuff from my ps3 to make more room on the harddrive. I noticed in the movies section there was a cache folder for bd titles. It was nearly 700mb. WTF?? Is this for bdlive functionality? I have some titles i've done bdlive for but not very heavily. I think xmen first class is really the only one I used the most for bd live.

Or is this some other need for blurays? Do non-ps3 bluray players have some internal storage space? What if you were to fill it up? Would it auto delete some things so you could play another disc?