Psp help. I cant get my songs to play!!?

I used my usb cord to upload songs on to my psp, and i cant play them.

It keeps saying something about the 'copyright or 'write protection.

I did all that it asked, and it still wont let me play the songs on my psp.

when i turn on my psp, and go to the music section, it says there is no music. But when i went to upload my pictures onto the psp, it showed all of the songs i downloaded on my computer screen and it will let me play them there...

if anyone can help it would be great!

Psp help. I cant get my songs to play!!?security

it could be a wrong file

try using mp3s

or try a different song

Psp help. I cant get my songs to play!!?trojan

try importing them to your computer then convert them to mp3 then tranfer them to your psp
just go to game stop and they will help u with your problem