ok i know there are old closed threads on this and i have already tried the geek squad advice of deleting the upper and lower limits in the registry key. i have already searched the internet for new drivers/solutions and tryed the incredibly useless FixIt program offered by microsoft. I'm here cuz i'm desperate. The facts: Im using vista. the dvd-rom, according to device manager, is an ATAPI DVD A DH16A1L. The driver is C:\Windows\System32\drivers\cdrom.sys, version is 6.0.6002.18005. The entire pc is as it was purchased with vista factory installed and kept up to date since. The device manager insists the device is working properly and has the best driver. when a music or game cd is put in, the drive works fine, runs silently, plays the music or game. when a game dvd is put in, the drive makes a grunt, then is silent. If i attemt to explore the drive from my computer, it ejects telling me to insert a disk. when a movie dvd is put in, its the same as a game dvd except that the grunt repeats continuously every few seconds until the disk is ejected. If this is a hardware problem, i have no problem buying a new dvd-rom, but if it is a driver problem i am afraid i will have the same issue even with new hardware. What do you think?