DVD ROM trouble

My DVD/CD-ROM drive is kind of acting funny here and there. Its a TSSTcorp CD/DVDW SN-S082D. Sometimes it will not even recognize a dvd is in my drive when I go to My computer to check on em and it especially wont play those that it doesnt recognize . It happends more on older dvds rather than newer ones. Anyone have any idea to why this is? Also I tried to find updated drivers as well with no luck, could anyone point me in the direction where I might find some for this brand?

Clean the drive, driver wont help.