|If you talking about blank CDR disks, they are formatted during the writing process. Typically, people select a grouping of files that they want copied ("burned") to a blank CDR disk and the software program they use formats the disk as the files are written to it. There is no "pre-formatting" of the disk.|
There are blank CDRW disks which are pre-formatted and then files can be written and erased to the formatted disk. But, the formats used on CDRW disks are propeitary to the software used to write and erase the files. CDRW isn't used that much because they can only be read by computers which have the particular software used to create them.
If your saying that you don't have a CD burner, that means that you don't have the hardware to use CDRs or CDRWs, so it's all irrevelent.