Hello this is my first time posting on this forum. I just bought a Pioneer 18x DVR-1810b5pk from fry's. When I got home I took it apart and got the laser diode out and hooked it up to a 3v 2 AA battery power supply and it was working, then I tried it again and it was Dim :'(. I am pretty sure i fried the laser. So I am gonna make one more attempt in building the mini mag laser. Can some one tell me what is a good dvd burner that has a closed diode( I heard that they are less prone to break) and can support a 3v power supply. Thanks for your time