I tried to break the file down but the computer was being odd and wouldn't do it, I didn't mean to leave the card as NTFS. I just needed to move a big file to a new hard drive.
But having it formatted to FAT32 hasn't helped still plays up, so I usually just stick my most listened to albums on the player.
I like sandisk memory cards so can't be bothered in buying a new one to try.
But don't get me wrong, I love this player.