For Mac OS 8.5 and below (down to Mac OS 7.5.1), install Toast 4.ĭiskCopy, bundled with late classic Mac OS versions, opens Apple's own distribution disk images such as file names that end with '.img'. First, install Toast 5 Titanium if you have Mac OS 8.6 to Mac OS 9.2.2. Try this software if you're stuck with a blank icon that doesn't open with any other application. As a matter of fact, if you're unsure and your disk image is bigger than 800KB, Toast will 99% of the time successfully mount it. cdr or if it did not come stuffed (.sit) or encoded (.hqx) then it most probably will mount using Toast. First of all, you have to know that there were at least a dozen disk image formats back then (altough only a handful of them were widely used) and fortunately for you, there is a very nice disk image mounting tool for classic Mac called Virtual DVD-ROM/CD Utility that mounts just about all of them (tough, NOT ALL of them).Īround the mid 90's, Toast came into play with CD imaging. One of the problems retro Mac enthousiasts face nowadays is figuring out how to mount old/random disk images in order to access the game or app in it.