Hey guys, Having a strange problem when i transfer some MKV files from USB to the internal HDD . Using the File Manager i can transfer the files over fine and i can scan them all so they show up on the poster wall and all play fine. But when i turn the player off and come back later to watch the rest of the shows the poster wall and all the info is still there but says " unable to play video" So i go into the file manager and for some reason all the files have disappeared? I have tried again to copy the files over but the same thing happens.. Would anyone know what`s going on?