DVD Game broken... Do I have to pay?

[Chabs]

Hello everyone, I'm kinda new in this forum =)

I just want to know what can I do If my DVD is broken.
I bought Battlefield 2 with all Addons in it + SF 1 year ago, it costed me 50 euros... Just 3 weeks ago, a "friend" of mine broke my DVD (I won't explain why or how... drunk stuff). It wasn't the only DVD he broke...

Luckely the game is still installed, and I still got the CD-Key.

Anyways... I just want to know If a have to call any service or something...
Do I have to pay something?
This thing never happened to me befor. By the way, I can't find Battlefield 2 anywyere.
I'm not the kind of guy that throws money trough the windows... 50 euro is something...

Thank you.

PS : Just a reminder, I'm not speaking of any warez or stuff like that since it's not allowed here... of course...