Sharp vl-nz100 software disk

Hello, I had a scratch on my camera disk so it loaded sometimes and not others and my roomie "helped" me and copied it for me. Then loaded some photo shop stuff that interfered with my printer. When I made him wipe it out he took my camera program with it. Now the original disk and the copied disk both have only read me files. I don't understand this and also cannot find the software to download on the net. Also do ebay and am broke! Help???