You shouldn't use .cso files. When using them in my softmodded psp, I can hear the compression (small popping noises ~ slight static) and the load times are a bit slower. You should just stick to .iso.
Edit: oops, sorry for the bump. I thought I was on page 1 when I was not.
Edit: oops, sorry for the bump. I thought I was on page 1 when I was not.

