Recovery Disk Assistant

Recovery Disk Assistant questions & answers

Built right into OS X Lion Lion Recovery lets you repair disks or reinstall OS X

Alternative downloads

MiniTool Mac Data Recovery
It is an efficient recovery tool that helps you retrieve lost files.
UFS Explorer Standard Recovery
Recovers lost and deleted data from various storage media and file system types.
OS X Recovery Disk Assistant
Repair disks or reinstall OS X without the need for a physical disc.