When making a data DVD, I heard it is (sometime ?) better to make an .iso file first, with for example UltraISO, containing all the files/folders and then burn the image, instead of compiling all individual files and folders in Nero for example.
Is there a real advantage doing that ? Is the number or type of files/folders a determining factor ? For example, I have to burn a substantial backup which will take at least a dozen DVDs, each containing something like ~300 .rar & .zip files.