I think the easiest and best way to make ISO's is USB SSS.

1.All you have to do is go to the first selection, (i think its called UMD ISO9660) in the app, then a window pops up
2.Drag the ISO onto your desktop.
3.Go to USB mode and put the ISO in the ISO folder.
4.Now just run your game from the memory stick in the games section.
Tada! now you have whatever game you ripped on your memory stick.
And it only takes about 10 minutes, Thank Booster!
NOTE! you must have a UMD in the drive when you play the game!