Can you remove licenses for mp3's?

[soag]

Right I got a new laptop and have spent several days ripping all my cds onto it, and when I tried to put a few songs onto my phone is said it could not be played due to license being expired.

 

It turns out when I was ripping said cds I had ticked copy protect music

 

Any way to unprotect them without having to rip them all again?

 

I'm such an idiot lol.

 

Oh I used media player and have windows 7 if that helps