i put the video files into the old folder system as i've used it since 1.50 and old habits die hard
i.e. on the root of your memstick you have "MP_ROOT" and inside that folder you have "100MNV01" for normal mp4's named m4q#####.mp4 +thm and "100ANV01" for mp4-AVC named maq#####.mp4 +thm. with that i aint had any problems. (##### equals any 5 numbers)

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