How to repair corrupt JPEG files

I have 100+ corrupt JPEG files. They were all taken from the same camera. Each file is approx 3MB, so there must be plenty of data to work with.

Here is an example of one of the files. (Click here to download as a Zip file)

They are from my uncles camera, so it would mean a lot to him if I could get them fixed.

Here are the steps I have taken.

1. JPegSnoop

This was suggested here. When I use this software, I get the following error message:

Start Offset: 0x00000000
*** Skipped 4878206 marker pad bytes ***
OFFSET: 0x004A6F7E
WARNING: Unknown marker [0xFF00], stopping decode
Use [Img Search Fwd/Rev] to locate other valid embedded JPEGs

I'm not really sure what to do with this error message.

2. Stellar Phoenix JPEG repair

Link

This has got rave reviews online. However, it did not work for me.

3. Online.officerecover.com

Link

This is an online service that again got rave reviews. Unfortunately, the files are too large to upload.

4. Jpeg Repair Shop

Link

This is another highly acclaimed software that did not work for me.