This backup data will be lost if the 
cartridge is used for backup.  You
may save the data by replacing the cartridge with another formatted cartridge.

The cartridge in the tape drive
was used to backup volume:

The cartridge in the tape drive is unformatted.  It will be formatted, then used for the backup.  Formatting a cartridge
takes about 30 minutes.  

Please insert a blank formatted
cartridge that can be used for 
the backup.