Disk images Articles on TUAW - The Unofficial Apple Weblog

Mac 101: DMG files are Disk Images

by Erica Sadun (May 2nd, 2007)

If you've ever downloaded a DMG file from a website, you've dealt with a disk image. Disk images are a kind of virtual disk--like a CD or DVD or even a hard drive. They store files in a way that acts like one of these data storage devices. To open a disk image, you just double click on it. The image ...

BackityMac update brings CD/DVD backup

by David Chartier (Apr 17th, 2006)

We mentioned BackityMac 1.0 a couple of weeks ago, and since then it's had a minor .1 update with a big new feature: backing up to CDs/DVDs. As icing on the cake, BackityMac can also span disk images that are too big for the media you're using, putting that 'size matters' issues to rest. BackityMac ...