issues with disc images made by rip it

Hope someone can help. Just unwrapped a new macbook pro and started to access my dvd collection that I have put on a hard drive using RIPIT. But none of the disc images will open. Anyone know what I am doing wrong?

satcomer said:

Right click on any of those files and see if any listed program can read those files.

Click to expand...

the only programme it offers is dvd drive (although the macbook has none and there is no external dvd player connected) - the message I get is "The media type is not supported."