I've been seeing this under 8.2, and from discussion here I thought it was fixed, but I've just seen it under beta3, so maybe not...
If you load a CD, often (but not always) attempts to reference /mnt/cdrom will result in "Input/output error". This seems to happen under 8.2 supermount if you eject a currently mounted CD and load another one, but I had it happen on beta3 with the first CD I loaded after reboot. In that case, I'm guessing that the CD filesystem wasn't completely mounted by the time I tried an "ls", but the error persisted long after the CD access should have been complete, and was returned immediately, i.e. I don't think it was actually trying to read the drive and getting an error. Under beta3, if I did a umount and then a manual mount, it was OK. Under 8.2, I have to reboot to clear the device. Wish I could be more specific about what causes this. Any diagnostic suggestions ?
