Dear All,
I have actually had a similar problem, and have had almost no success in trying to isolate the problem. I don't know if it is the same thing or not, but I'm hoping that maybe some extra data might be handy...
I have a relatively new machine that has just had XP reinstalled, due to a corrupted installation. It has two DVD read-writers, one fairly old, one new. The old drive was having problems with recognising discs, much as elunow describes, but it also had problems playing DVDs as well - it looked like buffering problems. These problems got worse fairly rapidly - to the point where it became basically useless within 5 plays.
So I started using the second (new) drive, and initially it was OK, but then it started doing the same. Again, within about 5-10 disc insertions, in was basically useless. In both cases, some discs were better and worse than others (The Myth played the best, and Firefly disc 1 wouldn't play as all) - although most discs just stuttered, as if there was a buffering problem.
I asked someone to have a look at the drives, and bought an external USB drive. This drive worked perfectly for the first 10-15 DVDs insterted, then started not to respond to inserted discs (like in elunow's case), and the drive then rapidly deteriorated until it, too, was useless (although the shop very kindly took it back).
The only common link is that the DVD it started having the problems with was Medieval Total War Kingdoms (which initially took forever to to install) - but I don't know any mechanism by which a DVD can screw a drive (is there one?).
During this process, I have replaced the cable joining the drives to the mother board. By process of elimination:
It is not the cable
It is not a physical problem with the drives (not initially, at least)
Windows doesn't recognise a problem with any of the drives
None of the drives had proprietory firmware
The only thing left appears to be either the Microsoft driver, or some sort of virus which corrupts DVD drives.
Any thoughts on the matter would be greatly appreciated.
Mike
PS To make things worse, though, I am now using my old computer - and its DVD drive is now misbehaving. It is not deteriorating, though, so I hope it is not the same thing....