I've only had this mp3 player for a week, but so far, although it uses the same chip as the vx747 (which I also have), the volume seems to be louder on the 757. This unit plays mp3 files (without the ID Tag), and it plays unprotected .wma files. My vx747 will not play unprotected .wma files. I don't use other audio formats, so I can't speak to them. Regarding video I do like the picture, and it is easily seen from other angles. I got the vx757 because it is not Touch, and with my 747, if I forgot to activate the lock, I would continue to accidentally touch the screen while placing the unit in my jacket pocket. I got tired of that.
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