Need help with USB WD drive copying problems

I had a 2TB WD drive connected to my computer and shared through windows where I stored all my music. So everyone could play the music from their own computer. (Family and friends attached to the network) Then I bought a 4 TB My Cloud drive from Amazon. I am not sure what model it is I can barely read the tag it’s too small. My problem is this. When I try to copy my music files over to the My Cloud drive into the shared music share when I go back to look at the share all I see is Playlist files. My computer calls them winamp playlist files since that is my default media player. Can anyone tell me what I am doing wrong and how to fix it so I can transfer my music?

Maybe you should try contacting WD’s Technical Support about this.

To Contact WD for Technical Support
http://support.wdc.com/support/case.aspx?lang=en