On a Toshiba Satellite A665 laptop with Windows 7 x64, the DVD drive has recently stopped recognising discs - first, it sopped reading "home-made" DVDs - archives with documents, photos, and so on (I think the DL first, then the rest), then "factory-made" discs (games requiring them in the drive, etc.), then it finally stopped recognising music CDs. The same discs are recognised and read by another computer. I have had the laptop for a few years, but I wouldn't say the DVD has seen usage that heavy.
There are two main doubts I have - either it might have simply got dusty (possibly the better option), or, since my HDD is really filled up currently, in case paging files or anything similar influences the work of the DVD drive, it could be that (however, since the DVD is not working, it would be a bit more difficult to do the obvious "free up some space and see what happens", and I mostly need the data I currently have on the hard disc). Or, of course, it could be something else.
If anyone could offer any suggestions what the problem might be and how to approach it, I would appreciate it.
Thanks in advance.