Through K3b, I mounted a DVD and browsed through it within K3b. Then I unmounted the dvd and pressed eject, nothing happened. I could then no longer eject the dvd normally. ie: unmounting, pressing the eject button, or eject /dev/sr0, etc...

Now whenever I try to burn something within k3b or via command line I get this error:

:-( unable to O_EXCL /dev/sr0: someone was in time to remount?

I've googled around and havn't found anything.

Any help would be greatly appreciated.

Thanks
Brandon

A look at the k3b log might prove helpful. Try this:
cat ~/.kde/share/apps/k3b/lastlog.log | tail -n 20

The -n 20 shows the last 20 lines of the log. Increase/decrease the number to change the numer of lined to view.

I have spent a lot of time today trying to eliminate this error when trying to burn a dvd using K3b.

I finally looked for the rest of the error "someone was in time to remount" and found a reference to the fstab file located at /etc/fstab. It's the config file for storage devices.

There I saw a line setting up my cdrom/dvd like this:
/dev/cdrom /media/cdrom auto rw,noauto,user,exec 0 0

I have read that this is the correct setup line for a cdrom. Anyway, I changed the first "auto" to the more precise "iso9660." I rebooted and K3b had no problems. I had spent a lot of time before this changing permissions and installing a newer growisofs.

The change also fixed a strange boot error about a missing UUID.(By the way, X-CD-Roast found the cdrom drive anyway without the fstab fix. Weird.)

I still can't believe this simple change solved it.