last night i wanted to play on my 360, i inserted my game disk it gave me a "this disk is dirty" so i was ok let me clean the disk inserted it again and nothing i tried other games with no results same thing or i got the infamous "please put in an xbox 360 disk" leading me to think my laser from my drive that is 5 years and a half old has a laser gone bad...

can i just buy the hitachi-lg laser off ebay "install it" "Pot tweak it" and "Voila" or do i have to do other steps?


Note: i am using the 12v mod on fan taking power from the dvd drive cable which im about to take that out and get me my self a talismoon whisper legacy next month because i heard that using that as a power source kills the laser or am i wrong?