Can you tell me what a .ISO file is?
Sure I can! A .iso file is an image of the contents of a storage medium, such as a CD or DVD. What makes an ISO image different from simply copying all of the files off of a disc? Well, an ISO image contains much more than just your files. In addition to plain old user files, an ISO image also contains all of the invisible system data that tells a computer how to interact with the contents of that disc. Imagine laying out every single piece of data on a disc and snapping a picture (image) of it — that’s what an ISO file is, an complete copy of the contents of a disc from start to finish.
Opening .ISO files
Windows Users: Alcohol 120% is a software package that can open up ISO images as if they were regular drives. It also burns CDs and DVDs, as well as create new ISO images from discs.
ImgBurn [source: LifeHacker] is another piece of Windows software that can burn discs from ISO image files.
Mac Users: Apple computers are able to work with ISO image files via the Disk Utility program.
