Hi
General principals
Do not try to write recovered files to formatted disk
You need another disk to recover files to
After formatting you loose index containing file names
You get r00001.jpg, r00002.jpg. ...
Long files which are fragmented are much more difficult to recover intact
For Linux or ntfs Windows I would use testdisk . Photo recovery suite from
CgSecurity.org
But it does not seem to support OS/X format
There are some recovery programs in trial versions
Either only recovers limited amount of data
Or shows what could be recovered if you buy a licence on line
One step professional may take is to clone the drive and run different recovery programs on the cloned drive. This is more important if drive has bad sectors .
http://www.easeus.com/mac/data-recovery-mac/
This is a well known data recovery software company for windows & Mac
Both free & pay for version
Best of luck
Regards
Regards
Mike Barnes