[Q] N9005 note 3 won't play any video/music files! topic

Hi all,
I've had this phone for over 6 months now, my first (and last) samsung device - great phone, but terrible build quality and it seemingly won't perform some of the basics my old Xperia Z used to do. Such as playing any of my music or videos! I've had no problem playing them on countless Sony Ericsson or Xperia phones over the last 15 years, or any apple device. For some reason nothing will play on the standard music or video player on the note 3. I've tried the standard players, along with poweramp, cubed, mx player, vlc player, plus a few more. The music and videos play fine on my laptop too, I've done a transfer via kids, via media go, I've dragged and dropped straight onto the memory card, I've taken the card out of the phone and done the same. I've also tried re ripping one of my dvds, using the special 'samsung' option in case it's an encoding issue.......nothing works at all. I'm at a loss, just wondered if anyone else has hit this issue and how they fixed it?

It's a rooted UK phone, but running the standard samsung rom so nothing very fancy there that could cause a problem I would imagine.....