Hard Disk Data Recovery, Professional File Recovery by Data Recovery Direct

This can be a number of problems ranging from mis-aligned head, to corrupt firmware on the drive electronics. This can still be recovered.

We use a special recovery technique which can magnetically repair the bad sectors before recovering data, therefore minimizing the chance of having corrupt data returned.

This is most likely a hardware electrical fault that could be caused by a power spike to the drive, which can damage the electronics on the drive.