PhotoRec is free, this open source multi-platform application is distributed under GNU Public License. PhotoRec is a companion program to TestDisk, an app for recovering lost partitions on a wide variety of filesystems and making non-bootable disks bootable again.
For more safety, PhotoRec uses read-only access to handle the drive or memory support you are about to recover lost data from. Important: As soon as a pic or file is accidentally deleted, or you discover any missing, do NOT save any more pics or files to that memory device or hard disk drive; otherwise you may overwrite your lost data. This means that even using PhotoRec, you must not choose to write the recovered files to the same partition they were stored on.
PhotoRec searches for known file headers. If there is no data fragmentation, which is often the case, it can recover the whole file. Photorec recognises numerous file format including ZIP, Office, PDF, HTML, JPEG and various graphics file formats. The whole list of file formats recovered by PhotoRec contains more than 180 file extensions (about 100 file famillies).
OpenSuse 11.1 user can use "1-click" installer to install PhtoRec - here
After sucessfull installation go to terminall and fire command: PhtoRec to open the PhtoRec console, you need to be "root" to use PhtoRec
Below are the few screen shots on how to use and recover files using PhtoRec, it's an menu driven and see to figure out the options
1) The first screen when you execute the PhtoRec
2) Here is the screen shorts of PhtoRec while recovering the deleted files from the specified partition and copying the files back to a configured directory
Refer here for more details and options to use photoRec