Well, I'm not going to argue the point with you, but I highly recommend you follow the instructions on how to tell if your player has hacked memory. Chances are you loaded the memory capacity with music and there is no room for the videos despite what the memory tells you. Anything over the real memory will be a ghost file that will not play, hence file format errors. I've been there, done that.
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 ops: 1GB Black Hacked Chipod ops:
2 GB Black Temptation Player 
8) WHITE MEIZU M6 8GB 8) |