Yes. I just noticed this on YouTube myself. I plan on splicing this footage into the Blu-ray, but would love the source files to work with. The only way to try and contact the uploader is by commenting on the YouTube video as far as I can tell. Maybe if enough of us comment asking for the source file, then they’ll upload it? 😛
Did you ever make any progress with creating a Blu-Ray version of the extended cut or do you still need the source file?