Apple has released OS X Lion as a download from the Mac App Store only; however, you can use the download to create a separate OS installation disc or drive partition to use for troubleshooting ...

Bootable disc image files may contain all the data necessary to create a disc from which computers can boot, but if you want them to work, you can't just burn them to a disc the way you would regular ...

If you want to make copy of a DVD but you don't have a blank DVD in hand, you can create a DVD disc image and save it to your hard drive. The disc image can be then burned to DVD readable by a living ...