Google Play Music, Samsung Music Player, Rocket Player, Folder Player and Walkam Music player ALL are able to play ALL of my music. SD card is of course MOUNTED or the other players wouldnot/couldnot play said music. Format is MP3 and as mentioned playable by all other players. I bought the full version at $3.99 U.S. because reading through the forums that was suggested. SD card reads everything fine and is fairly new 64GB Class 10. I have run chkdsk serveral times on it. AND everything else reads and writes. Oh yea, rescanned, re-selected folders etc. still get same error "too many