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(Mastered) or UDF (Live File System). For step-by-step instructions, see
the free PDF appendix to this chapter, “Burning CDs and DVDs.” It’s
available on this book’s “Missing CD” page at missingmanuals.com.
ISO Disk Images
Programs you download from the web (not the Microsoft Store) often arrive
in a specially encoded, compressed form—a disk image file, also known as
an ISO image (Figure 3-21). Heck, most people got Windows 10 itself as an
ISO file they downloaded.
Disk images are extremely handy; they behave exactly like disks, in that
they can include a whole bunch of related files, folders, and pieces, all
distributed online in just the way the software company intended. And
here’s the good news: You can work with ISO images just as though they’re
disks, too. (In the old days, you had to buy a program like Virtual
CloneDrive to get this feature.)

