Xbox only reads some discs, but not all, what does this mean?

Okay, so I have a fairly old Xbox, it's one of the white ones. Recently it overheated, so I blew the dust out of it and now it runs fine again except for the fact that it will only read certain games. It will read Oblivion, Dragon age and other games like that, but It will not read Fallout: New Vegas, Assassin's Creed Brotherhood or Dead Space 2. Those were just the discs I tested it on. It should be known that the games it wouldn't read were all installed on the hard drive at some point. Dragon Age was too but it read that one. What does this mean? Is this Xbox done for good and am I going to have to get a new one?Xbox only reads some discs, but not all, what does this mean?
Hmm. The read failure is only after the over heat? I suspect, that when you, "blew the dust out," something ended up in the drive. Don't blow compressed air in the drive, you're more likely to cause damage than fix anything.



Order a set of disassembly tools. The "star," drivers are called torx. Try to get a set that are just drivers, not bits with a fat socket that might not fit into holes. Disassemble and clean the drive. Clean the laser lens with rubbing alcohol and a qtip. If it still fails, the lens maybe scratched. You can try to buff it out with fine grit car polish.



After that you can try replacing the laser and drive but, it seems to me that the over heating shouldn't have affected them.



Good luck!Xbox only reads some discs, but not all, what does this mean?
If you know how to get star wrenches and take it apart and clean it really throrough and clean the lens with a cloth you clean your glasses with or u could just pop in a cleaning disc they sell at wal mart and see if that worksXbox only reads some discs, but not all, what does this mean?
This also depends on if you can really diagnose if it is a disk read error or your Hard Drive has lost data with the overheat. What i would try to do is before you ever open it and risk messing it up, is to try deleting the games off you HD and run them straight from the disk. If they still give you disk read errors then you most likely have a faulty part in your Xbox and it will be time to replace it. If you are able to read some games and not all then i don't think it is a problem of dust or a dirty lens. I had one of the first Xbox 360s to come out, bought it in November of '05 and in 2010 it did the same thing to me. I took it apart and cleaned it and even used a disk drive cleaning CD and they both did not work. So i bought a new drive off eBay and a new HD at game stop and it fixed my problem. I do hope this is not your problem because it will cost, but i don't want you to look over it.