I am having the same problem. My computer is a Toshiba QOSMIO and it wont read discs. It has a symbol like this

over its picture when you go into System-Device manager-DvD/CD-ROM drivers+.
It also has this comment when you go into its properties.
*Windows cannot load the device driver for this hardware.
The driver may be corrupted or missing. (Code 39)*
What has happened and how can it be fixed?
If you know please let me know.
Thanks.