help with my psp files

So, i took my psp and ripped one of the umd isos to my pc and i opened it. Now, what i intended to do with the files was take the models and put them in garrysmod for me to use. My problem is, i have no way of opening the .bin files in the iso image. On one game, i have a mass of .bin files in PSP_GAME\INSDIR which i can only assume are .bin files containing models. My other game has a mass of .zdb files which are in folders which are the names of ingame models. How can i open these .bin and .zdb files?
I have tried multiple programs on the .bin files to no avail, but i have yet to attempt to oopen the .zdb files, but any help on getting at the models in these files would be appreciated.

 

The .zdb files may open with DesignPro.