why wont it let me burn games anymore :(

[-B|ade-]

Hey ppl..well ill get right to the point....ive had a burner for about two years now..ive been able to burn games no worries using BlindWrite Suite...but recently something hasnt been goin right...It lets me burn em i get no error, lets me install it fine...then when i go to play it says "Please Insert CD"..this never use to happen..and its happening with ALL games..even games i have burnt successfully before...ive even reformatted and this still happend...if tryed my friends brand new burner and the same thing happens so its not my burner..any ideas?

i use WinXP Pro..and well im not sure about my burner but from what i can see its a Diamond Data CDRW 32x10x4

if any of you ppl can help me solve this ill be a happy man