UDF, also known as Universal Disk Format, is a type of file format used by optical devices to burn CDs and DVDs. The main advantage of using the UDF file format is the ability to edit the data burnt on to a disc. If you want to burn the files on a UDF-formatted CD on to another CD, you can do it via the Windows Explorer CD/DVD burning option. However, you must first format the CD with the UDF file format before you can burn a UDF file on to it.
Copy the files from the UDF-formatted CD onto your hard disk.
Insert a blank CD into your computer's CD/DVD writer and select the option labelled "Burn files to disc."
Name the CD that you are about to burn. To do so, enter a name into the "Disc title" field and click "Next."
Click on the radio button next to "Live File System" and then click on the option labelled "Change Version." Use the drop-down menu next to "UDF Version" to select a UDF version that you want to burn the files with. For example, UDF 2.50 supports only Windows Vista and later operating systems, but UDF 2.01 features additional support Windows XP as well as Windows Server 2003.
Click "OK" to format the CD with the selected UDF file format. Windows Explorer will then open the formatted CD in a separate window.
Open a new Windows Explorer window and browse to the location of the files that you copied from the UDF formatted CD or DVD. Drag all the files onto the other Windows Explorer window to copy them to the CD in UDF format.