I'm trying to burn a software DVD (I'm running Mac OS X 10.3.9). The folder with all the information contains a bunch of files ending in .r01, .r02, .r03, etc. with 53 in all. There's also a file ending in .sfv and an RAR file. How do I burn a usable DVD that will work for installing the software? Or how do I turn all this into a single usable .dmg file?