Does this little yellow triangle with the ! in it look familiar when you go into "Device Manager" and go to your CD/DVD driver...I have been dealing with this nightmare problem for over two months!!! I am learning a lot on how to get around my computer(more than I care to actually), and I was SO THRILLED to find this site with others having the same problems. Bottom line, as best I have determined, is that when you install iTunes on some computers (mine is a Toshiba-who by the way are HORRIBLE when you need their help, with the Vista Home Premium operating system), it messes up the CD/DVD-ROM drive. As outlined by others the best way to get the drive to start working is by deleting the upper and lower filters. However, once you do that when you go back into iTunes you will probably get the following message "Warning! The registry settings used by the iTunes drivers for importing and burning CDs & DVDs are missing. This can happen as a result of installing other CD burning software. Please reinstall iTunes." So my question is: does anyone know how to "Update version of other optical drive software" which apparently is required to be able to use iTunes and still maintain a working CD/DVD drive? Any support/directions would be GREATLY APPRECIATED by this very frustrated lady!!!