How to Erase a cdrw wrongly burned
 

I tried to make a backup of a cd I own protected with securom new on a cdrw using a Waitec Aladar burner.
The disk is not readable by either the player and the burner.
I tried to erase it but no way.
Clone or nero tell me that the cd is erased, but it's false. The cdrw is still unusable.
Does anybody knows how to erase it?

your cdrw has turned into a ...............................coaster!!!!!!!!!!!! !:p
next time try to burn to a lower speed

Wow... making a coaster out of a REWRITABLE CD... I thought it's generally impossible. But it seems that hardware malfunctionability has no limits...