Universal Disk Format (UDF), a configuration file known as ISO/IEC 13346 and ECMA-167, is an open supplier-neutral file system.It is used to save computer data of various media. In practice, UDF is most widely used in DVD and updated disk formats replacing ISO 9660. Before installing the UDF Software on the Mac, X windows will need to be set up first. The Mac OS X operating system, although it is a UNIX system, does not provide an X window capability. To add X windows you should use a utility called fink. (There is some folklore about why it is called fink but it is a long story and not important). File system formats available in Disk Utility on Mac. Disk Utility on Mac supports several file system formats: Apple File System (APFS): The file system used by macOS 10.13 or later. Mac OS Extended: The file system used by macOS 10.12 or earlier. MS-DOS (FAT) and ExFAT: File systems that are compatible with Windows. Open Disk Utility for me. Download The File Converter for macOS 10.10 or later and enjoy it on your Mac. Convert your files to nearly any major format! This incredibly powerful app can convert your documents, videos, audio, ebooks, images, spreadsheets, presentations, vectors, and more!
Disk Utility User Guide
You can convert the image format and encryption of a disk image.
For example, if you create a read/write disk image but later want to prevent changes to the image, you can convert it to one of the read-only disk image formats.
In the Disk Utility app on your Mac, choose Images > Convert, select the disk image file you want to convert, then click Open.
Click the Image Format pop-up menu, then choose a new image format.
Read-only: The disk image can’t be written to, and is quicker to create and open.
Compressed: Compresses data, so the disk image is smaller than the original data. The disk image is read-only.
Read/write: Allows you to add files to the disk image after it’s created.
DVD/CD master: Can be used with third-party apps. It includes a copy of all sectors of the disk image, whether they’re used or not. When you use a master disk image to create other DVDs or CDs, all data is copied exactly.
Hybrid image (HFS+/ISO/UDF): This disk image is a combination of disk image formats and can be used with different file system standards, such as HFS, ISO, and UDF.
If you want to change the encryption, click the Encryption pop-up menu, then choose an encryption type.
Enter a new name for the image in the Save As field, click Save, then click Done.