Corrupted image file

I work as a technician in a company. I would say that Norton Ghost helped me quite a lot those years that i work.

 

1 month ago I created an image file from a disk and i put this file in a disk where i always keep my client backups.

 

When i tried to retrieve some file from the image i get errors similar to a corrupted image file etc.

I tried to access the image but no luck.

 

Is there a tool to force opening the image so i can get the files i want?

 

Thax you in advance