HELP: uncorrupt .jpg/.jpeg files

In article ,
wrote:

Hello,

I just came back from a trip and am currently uploading my photos taken on a
digital camera. I was using a fairly old (but perfectly great) Canon
Powershot SD450 and a SanDisk 512MB memory card for storage. When I finished
uploading pics, I noticed that a good portion of the photos were "missing".

I ran a file recovery program, CardRescue, and found that 40+ photos were
corrupted and, therefore, were not being uploaded into iPhoto (I have a
MacBook Air). I extracted the files and saw that the sizes of the
corrupted/damaged range from 2-6MB, so there is data...

After trying out a few more .jpg recovery programs, I'm still at a loss. All
programs have yielded no results. Any idea what I can do to rescue or
uncorrupt these photos?

http://www.datarescue.com/photorescue/