Hello folks, Here I am asking for help to the more knowledgeable people. The issue I'm having is the following. Thursday night, I noticed that Windows Defender hasn't been updated since 2009-04-24. It just would say that there were no new updates. I know I could have cleaned the corrupted updates, but, instead I downloaded the defintions to apply them manually. Later on, I could create an image file from a DVD. So, there was no issue of what so ever. Then, like 2 hours later, I shutdown the computer. The next day, at afternoon, I was going to record an image to a DVD. I notice that the DVD player wasn't recognizing the empty DVD. I switched to another just in case. Still doesn't recognize it. I insert a recorded DVD and it does not recognize it either. I went to see if there was any problems with the DVD player's driver at the Device Manager, but all is fine. I even uninstalled and reinstalled the driver. Didn't do the trick. To see if it was a problem with the DVD player or if something messed with the capability of the DVD player recognizing DVDS/CDS, I inserted my Windows Vista DVD and rebooted. The system boots with the DVD. So, the DVD player has no problems. But, something is preventing it from recognizing DVDS/CDS. So, I decided to go back in time, using Windows Restore. When the restore finished, the DVD player could recognize the DVDS for a while, but, then it stopped recognizing.* I must confess that I'm not that an expert in what comes to hardware, unfortunately. I really don't know what else to check and try. If any of you as passed through this before, or have had a similar experience, I'd appreciate any help, because I'm totally lost here. * I doubt it is related to it, and, maybe it was my mistake, but, as soon as I re-applied my software restriction policies, and when I rechecked, the DVD player no longer would recognize the DVDs. As I say, I really doubt it had anything to do with it, because I've had them for a while now, and they never gave problems, and none regarding the DVD player. So, I leave this out. P.S: This morning, I even restored again to a moment before manually updating Windows Defender, but, this time, no deal. Not even for a while. But, the first time I restored to a moment before updating Windows Defender, it did allow it to recognize the DVDS, so, I strongly believe that the culprit was this. I don't know if it will help anybody (and sorry for not being able to upload a picture right now), but I started ImgBurn, the program I use to record DVDs, and I chose the option to verify the disk and this is what I get: Thanks Edit: By the way, I'm running a laptop. The brand is unnecessary as it is one from my country, and not sold anywhere else.