[KCMcCabe]

I have plugged it into the computer and the phone indicates it is connected as a Media Device (MTP). I have opened the files for the phone through "Computer" and copy and pasted the music files to those for the phone. I have also tried syncing it to the phone through Windows Media Player. The files do transfer to the phone, but when I try to play them, an error message comes up.
How can I transfer these files to the Samsung Galaxy Centura? I am not sure if who the service provider is is relevant, but I use Tracfone.
Thank you.