Normally I'd tell you not enough information - you really arent giving us much to go on here afterall. However you're lucky that the board states the connections for DVD and CD. Go ahead and follow which two traces by that "DVD" text lead to which pins - those SHOULD control a 658nm red diode. The matching pins for the CD SHOULD be for a 780nm near-IR diode. Without more info, its impossible to even guess at the order of magnitude of the output power.
I suggest that you unsolder the little pcb from the laser so you can see which pin that is the can. And don't foreget to ground yourself, and which pin that is the red one. You can't be sure about the voltage or current for the diode without a datasheet.