Art Vandelay said:
Some CDs have special features which launch themselves automatically when inserted into a CD-ROM. Will changing the Autorun status affect these automatic launches?
Yes! (This is a good thing.)
The autorun.inf file contains a set of instructions for the computer to execute when the CD is inserted--but typically, these involve running executables automatically. While the implication is that if you insert a CD, you trust its contents, in practice, this isn't necessarily the case. A certain copy-protection scheme depended on users autorunning CDs, at which point it launched an unauthorized executable which interfered with certain operations on the CD's contents. It's hard to consider that significantly different from a virus, in that it was executed surreptitiously (most users don't know what autorun is), and interferes with the computer.
Also, speaking hypothetically, if you happen to recieve a CD from some not-necessarily-commercial source, and it has an autorun function, what's to say that the associated .exe is not virus-infected, or outright malicious in its own right? Unless you're reasonably sure of the contents of every CD you use, it probably isn't wise to let things execute on their own like that.
In any event, you can still trigger the autorun functionality, even when disabled, by double-clicking its icon in Windows. (Its just no longer automatic.)