Do I Need To Keep Dmg Files Mac Computers And

A disk image (.dmg file) is a file that looks and acts like a mountable device or volume.

You can fill an empty disk image with data, then use it to create disks, CDs, or DVDs.

Theres a lot of benefits to disk imaging, as noted by Dmitry Shesterin at.

This gives you the flexibility to change back to any preferred configuration.

If you want to keep data from a computer, you dont need to keep the actual hardware around.

This is the name that appears in the Finder, where you save the disk image file before opening it.

This is the name that appears on your desktop and in the Finder sidebar after you open the disk image.

Click the Format pop-up menu, then choose the format for the disk.

Do I Need To Keep Dmg Files Mac Computers And

If the disk will be used with Windows or Mac computers and is over 32 GB, choose ExFAT.

To encrypt the disk image, click the Encryption pop-up menu, then choose an encryption option.

Click the Image Format pop-up menu, then choose an option: Sparse bundle: Same as a sparse image, but the directory data for the image is stored differently.

Uses the.sparsebundle file extension.

Sparse disk image: Creates an expandable file that shrinks and grows as needed.

No additional space is used.

Uses the.sparseimage file extension.

Readwrite: Allows you to add files to the disk image after its created.

Uses the.dmg file extension.

Uses the.cdr file extension.

Click Save, then click Done.

However, Im using Catalina on a 16-inch MacBook Pro for this tutorial.