I find it very frustrating when I insert a CD that has read errors on it and windows freezes up for a long time. What is the fastest way to break this blocking? I usually kill explorer.exe and restart it, but in windows 7 even this does not always help!
Manually eject the disc by pushing the eject button on the drive tray.
I have noticed this behavior in W7 and how it handles dirty or damaged discs, it goes nuts sometimes trying to read the disc, what I do is Use Ultra ISO to read or copy data from the disc if I know it is damaged, it seems to manage the errors much better.