I recently downloaded a rip of a DVD and it came in the form of multiple files with odd extensions (e.g. filename.dvd.r44 with ascending numbers) along with a .NFO file and some others. I've seen this format before (when I noobishly tried to copy and paste from a DVD movie) but I am not sure how to burn it to a DVD. Can I just use alcohol 120 to make an ISO of the files? Do they need to be in a special folder? Also, the DVD has to be bootable, so is there anything special I have to do?