How to Extract a UDF File. Universal Disk Format (UDF) is a image disk format used to mount files on optical media such as DVDs, CDs and Blu-rays. The format enables the interchanging of files ...

Archive a folder Open the Disk Utility app that came with your Mac. Choose File then New Image and lastly Image from Folder. Then pick a folder with all of the files you want to save to the DMG.

Windows is frustrating, nuff said. How does an Apple Disk Image file, aka .DMG, not being able to open natively on Windows make Windows frustrating?