No there is no way back once you used/written to the filesystem.
As long as you are careful not to write to it(mount it read only - "mount -o ro")
you can restore the backup file but that's it.
The other way around would be much more work, more difficult and even more useless then this.
Considering how long it took for someone to give this a try I wouldn't hold my breath.
should do it afaik - cant check - no isos
there were some nameing options but I cant find them atm
As long as you are careful not to write to it(mount it read only - "mount -o ro")
you can restore the backup file but that's it.
The other way around would be much more work, more difficult and even more useless then this.
Considering how long it took for someone to give this a try I wouldn't hold my breath.
Code:
wit cp -Bz *.iso -d /mnt/wii
there were some nameing options but I cant find them atm