I recently bought an SD card for my Samsung Galaxy Centura, mainly so I could store music on it without taking up much of the memory. The odd thing is, when i went to play some music using the music player, only about a quarter of the songs showed up. When I used Android File Manage to check the SD card, they were all there and playable. All the songs are MP3 format. Can anyone tell me how I can get the songs to work on the music player?