Trouble making an MD5 Checksum with .tib

[Hemi177]

Hello. Recently I decided that I needed to transfer some .tib image files that I made with Acronis to a different hard drive. To make sure that they had transferred properly I tried to use FreeCommander's create MD5-checksum function before and after the transfer, but when I tried to do that on any of my .tib files it popped up with an error message.
Here is the error message: http://imageshack.us/a/img19/1685/k0n1.png
So I guess my question is this: Is FreeCommander able to create a MD5-checksum of .tib files and if so how do you do it?

Other Info:

OS: Windows 7 Professional x32 bit
Acronis Version: Acronis Workstation Alt-Boot Loader v.9.7
FreeCommander Version: FreeCommander 2009.02b