Cannot read i have this quite old model of toshiba dvd-rom drive,model no. SD-C2502...My problem with this is it cannot read any cd's or dvd's anymore...Anyone could tell me its problem and how to solve it?... Thanks... jolly

The problem I had was that my DVD/CD-ROM, a SD-C2502,
would only play DVD's, same as yours. Data disks and Audio disks
would not be recognized by Windows. I took the DVD/CD-Rom out, removed the alluminium plate that is held on with 3 little screws and inspected it. I found alittle dust on the DIVERTER(?) mirror/lens. I blew if off, cleaned the primary lens. I reassembled it, put it back in the laptop and now it works fine on ALL CD's. BE VERY CAREFUL WHEN CLEANING THE PRIMARY LENS. BE VERY GENTLE. If this fixes your problem and if you can Please pass this on. It saved me ALOT of money. Almost forgot, the ERROR Message that I would get, before I fixed it was "WINDOWS CANNOT READ FROM DISK.THE DISK MIGHT BE CORRUPTED OR IT COULD BE USING A FORMAT THAT IS NOT COMPATABLE WITH WINDOWS. I hope this fixed your problem.

I think your drive is old and full of dust inside or it may be nearing its end. Get some servicing.