Burn data backup format

I want to burn a backup of important files, do not know what format is carved carved CD or DVD, or other? There is the example I have a 4.5G disk Zhang 4.7G important documents to be burned.Will be able to Kourou win out? ?

DVD recordable disk capacity is 4483M because discs are based on a 1G 1000M to 1024M is counted and not to count the so 1G and 4.7G on the hard disk is different from the past! Hard disk should be 4.37G is a full-capacity DVD disc! To the hard disk and burn your data is a character on the test what kind of hard disk files on the CD-ROM also look like! Since many of your important files that have 4.5G of the disk or burn it with DVD! But certainly one 4.5G DVD disc is not fit what the want to have this 4.5G burn a CD drive Zhang added it now! To have the recorder! ! ! !

Thank you.