So after I bought a lot of songs off of iTunes, iTunes told me that I should back them up. So the only blank discs I have are DVD+R 4.7 GB and it worked to burn them on the disc, but after it's burned and i put it back in my computer, nothing pops up and i can't see the files. All that happens is my computer gets all frozen up until i eject it. I just want to have all my music/app files on my discs so that if my computer breaks or anything not all of that is lost. Please help! Am I not able to use this kind of disc for this? Thanks so much!

WHOAH! Update: I just put the disc into the computer again to try again, and it started making a horrible noise, and i ejected it very quickly.