Well i guess the iso was defective
Try ripping a CD copy of Nicktoons Nitro which you can get on Raw Thrills's website(rawthrills.com) Go to products, scroll all the way down click on Archive, click on Nicktoons Nitro. Click on Nicktoons Nitro Latest Software and buy it.
Then burn the iso off the disc bought from Raw Thrills's website, then decrypt it.