Can Someone explain to me. I have synced 4150 songs out of my library. On a 32GB micro sd card and 32GB mp3 player. Sync completed and 4150 songs were completed. Only 4000 songs are showing up in the display on a 32GB usp, 32GB micro sd and 32GB MP3 player. Only 20.4 GB used. I don't understand why the 4150 songs do not show up on display only 4000.