I can see that a lot of people have had problems with their DVD/CD drives and Windows 7 but I couldn't find one like my issue, so here goes. My DVDRW drive is a Lite-On SHW 1635S. A while ago I burned some pictures onto a disk (using the Windows burn feature) but didn't close the session because I wanted to add some more pictures later. All was well at first - I took out the disk, and a few days later I put it back in, and everything was fine. I edited one of the files and then took out the disk.
That was a couple of weeks ago, and I haven't used the drive until yesterday. Now when I put the same disk in, it says there is no disk inserted. The drive itself shows up fine in Device Manager, it says the drive is enabled, the Record tab is there, etc., but no matter what disk I put in it - DVD, CD, blank, burned, retail, whatever - it says that there is no disk in the drive. Sometimes it tries to read it and the light comes on steady at first, then it starts blinking in series of three for a couple of passes, and then stops altogether. I'm assuming that is some kind of an error indicator, but I haven't seen any reference to what that might mean in any of the stuff I've read regarding this problem. I found some references here and there about having the correct entries in the registry, but I haven't been able to find out what they should be for this drive, and the Lite-On website is useless since they only have support for current products. I ran the Microsoft Fix-It program and it told me that there was no readable media inserted (I tried several different types of disk & got the same result each time). As far as software goes, I just got this computer running a little over a month ago, and I don't have very much installed on it other than Windows 7 - just Avast, Photoshop, RealPlayer, and the full Office 2010 suite. I don't have any burning software such as Nero or Roxio installed, and I don't have ITunes, either, so I think I can eliminate those kinds of issues - or maybe not? I guess I don't know whether the problem is with the hardware or the software, so I'm looking for a little guidance as to what to try next. Any input would be greatly appreciated!