Hello all, i was trying to restore my backup of the system image which is about 6 months older via ClockworkMod Recovery. But i got a error which says something like:

MD5 mismatch!

Then after searching over the internet i found out the solution to this. Hope this might be useful to you.

Solving the problem

In the backup image folder you will see several files including nandroid.md5. Open this file with text editor such as vim or any of your favorite editor.

Delete the content of the file and make it empty. Optionally if you have any problem editing the file and simply delete this file and make a new file with same name(nandroid.md5) and keep this in the back image folder.

So, by deleting the content of this file i was able to fix the problem. Hope you will be able to solve the problem with this method.