PSP ISO HELP

So If I were to download a psp rom online, I would have to download it it 2 parts, because its so big. So I have 2 rar files. How do I turn these into 1 iso that I can play on my memory stick?

[crait]

Okay, no.
You can download them as full files.
Any split RAR files can easily be put together.
Open up one, if they're in the same folder, and then extract the data. Both should extract at the same time and it will do it all by itself.

ok, I'm sorry but I;m still not getting it. I'm unzipping them and then putting the one file into the Iso folder. And I've also tried converting it with ImgBurn. but I still cant get it. can I get a step by step guide or somethin?

ok! I got it. I had to unzip it twice

FYI, If you have WinRAR, you make sure you have both the split RAR files in the same folder. Then right click on one of the the RAR files, and select Extract Here. It should automatically extract all the rar files within the same folder (as long as they have a similar name) in one shot. Once its one single ISO file--the extension should say ISO, then you simply put that in the PSP ISO Folder. Have fun!