Getting pictures from your MAC to your computer can be a hard thing to do. This is when you should know more information about the DMG - Mac OS X Disk Image and how you can be using this to help you in getting the files easily converted to a more usable format for your PC.
The first thing you need to realize is the data which you get here is commonly produced in a raw block of data. When you are looking at this, it is easy for you to get the proper information for your MAC, but you may not be able to transition this to your computer.
Another thing you need to realize with the DMG - Mac OS X Disk Image is you are able to have the files converted into a recognizable format for your computer. When you are able to have this format as recognizable, you can finally take the files from one computer and back, while knowing you can look at the pictures at any period of time.