Editor: MacImage is an utility to produce Hybrid Macintosh/PC (HFS/ISO 9660) CD-ROMs and DVD-ROMs on a PC. (DVD-ROMs are just bigger volumes.) Hybrid CD-ROMs behave like native media on both platforms (PC and Macintosh) and give all users the best possible experience when mounting the CD-ROM on their computer. On a PC, those CD-ROMs behave like plain ISO 9660/Joliet CD-ROMs (Autostart, long file names).
Likewise, they appear as plain Macintosh volumes when mounted on an Apple computer, with icons, long file names, "double-clickable" file icons and the like. They can implement the QuickTime autostart feature (only under MacOS 9) when it is not inhibited by the user. There is no autostart under mac OS X. It is even possible to install Macintosh applications (programs) on such media.
As other CD-ROM premastering software packages, MacImage manages a project file holding the list of files and folders that the user want to include in the ISO view and/or in the HFS view. Data files are shared Between both views (or, better said: can be shared). This project file is compiled to produce an image file, which is then burnt (as an ISO image) with your favorite burning software.