Hi there!
I got it from file hosts. There are ways to get it quite fast this way.
If anyone needs help, just PM me. I can also upload parts to other hosts, my upload speed is pretty bad though.
By the way: I am searching for the lossless PCM audio track from the BTTF Laserdisc. I would like to sync it to the DCP Blu-ray. Can someone here please help me out?