straight talk optimus zip

[lilbit71]

I need help with my new zip phone. This is my first "smartphone" and I cannot get the music player to recognize my music on my sd card. The phone recognizes the videos and pictures, just not my music. Tried downloading the android player, still no go, dowloaded the rocket player and could only get a few of my ringtones, still no music. What can I do to fix this. I am so confused. Thanks!