Ok I searched but am lost. From the looks of it a dump is a back up of a game. What I am having a hardtime figuring out is why are there a bunch of them on the site and what good does that do me. I'm sure its simple and explained some where on here already but its hard to search for a explanation when you dont know what you are searching for any help would be great and thanks in advance

The answer is sticky ...

http://forum.redump.org/topic/5275/what-is-dumping/

http://en.wikipedia.org/wiki/Digital_preservation

To sum it up: It's a project to collect INFORMATION about proper (aka as best as it can be) preserved optical media and how to achieve them. Mainly due to legal issues, SHARING of the actual dumps is not part of the project, and you won't find a single game to download here. But there are some other ongoing projects providing bittorrent downloads. See the above links for further informations.