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. When you use a master disk image to create other DVDs or CDs, all data is copied exactly. It includes a copy of all sectors of the disk image, whether they’re used or not. Read/write: Allows you to add files to the disk image after it’s created.ĭVD/CD master: Can be used with third-party apps. Read-only: The disk image can’t be written to, and is quicker to create and open.Ĭompressed: Compresses data, so the disk image is smaller than the original data.
In the Disk Utility app on your Mac, choose Images > Convert, select the disk image file you want to convert, then click Open.Ĭlick the Image Format pop-up menu, then choose a new image format.
