it has been going on for more than 7 hours and looks only 55/60% done .
If it does not move, then the drive is dead and you won't get any result from DiskSalv even if you wait another 1000 hours.
You should switch off the Amiga and switch it on again. Hopefully the drive will unlock by the power-down and boot again. You should then try to copy as many files as possible to another drive. After that you should send the drive to happy hunting ground. It has exeeded its life time.
Bye,
Thomas
