Ok, so I'm trying to move some files for my buddy. He used to have an Xbox and had a 1tb external hard drive for the storage of movies and games. Now he switched to ps4 (I know pc is better) anyway he needed his hard drive reformated and movies switched over. I thought it would be easy but... Reformat was easy, the 4 root files were np. I moved a test file on again, np played on the ps4 and everything. However when i went back home to move the bulk video files it always seems to crash when moving over larger files. I can get a doc or pic on there but no videos... Any thoughts? Is there a tool to use? The other hard drives involved are fat or ntfs does this matter? Could the hard drive just be messed up? Really anything you can think off plz.. Just want to stop banging my head against the wall.