I have seen some pretty complicated instructions for making disk images on the Mac. Of course, you can use Disk Utility without a whole lot of issues, but FreeDMG makes it even easier. Just drag and drop.
According to the web site:
Product Description:
FreeDMG is one of the most powerful and easy to use disk imaging program available for Mac OS X. With this software it is possible to quickly perform disk imaging on the fly. Both the program’s window, and the dock icon can be used for drag-and-drop imaging. There many image formats that that can be chosen (UDZO, UDCO, etc.). FreeDMG can make internet enabled disk images for distribution to Macs as well as ISO/Joliet hybrid images for cross-platform delivery. Verbose preferences, and a built-in log window help users hide/display additional information about the imaging process.
Gain easy access to the many options available for creating and manipulating disk images in Mac OS X with FreeDMG. From the hidden “resize” function of hdiutil to the adjustable compresion levels available for the UDZO format, this software attempts to unveil it all. Users have the option to overwrite exising files, and can choose to quit the program automatically after creating an image on launch. It is possible to encrypt images (password protect) with the click of a button.
With FreeDMG you can attach beautiful html/rtf software license agreements to disk images. This software is currently the best way to add SLAs to disk images for multi-lingual distribution. The license creation process in FreeDMG prevents character loss for all 2-byte languages.
Features:
* Quickly create disk images in a variety of formats
* Manipulate disk images (resize, convert, segment, internet enable, encrypt, etc.)
* Burn disk images
* Attach software license agreements to disk images
System Requirements:
• Mac OS X v.10.4.x-10.5.x
• Mac OS X v.10.5.2 is required to use encryption in Leopard
(encryption works normally in all versions of 10.4).
Get more info and the application here.
