Unstoppable Copier is a free portable corrupted file recovery software tool that allows you to recover files from hard drives, flash drives, CDs/DVDs and other media disks that have physical damage or are starting to go bad. I.E (copy files from disks with bad sectors, CDs or DVD's with scratches or drives that display read errors while accessing data).
Roadkil’s Undelete is a lightweight and completely portable file recovery tool that can be used to recover deleted files from both internal and external drives, including USB flash drives and portable hard disks. As long as the drive hasn't been reformatted, this utility can detect and restore many types of files—quickly and with minimal effort.
PhotRec is a free portable data recovery utility. It can be used to recover files including video, pictures or photos (hence the name), documents and archived files from hard disks, removable storage devices and even CDs. the software can recognize the header formats of supported file types and works even if the filesystem on the drive is severely damaged or has been reformatted.
Data Recovery is a software tool that allows you to easily recover lost and accidentally deleted files. It can even be used to recover files that have been deleted from the recycle bin. The utility supports recovering lost or deleted data from FAT, FAT16, FAT32 and NTFS partitions.