Christopher Guest, the actor, writer and director famous for spoofs like "This Is Spinal Tap," "A Mighty Wind" and "Best in Show," has two music videos coming out today.

His fans may recognize his signature style -- lots of music and earnest self-parody -- but not the products that the videos are pitching: the vPro and Centrino Pro from Intel, which are used by information technology professionals to maintain and repair computers securely and remotely.

The videos' soundtracks are two songs written by Mr. Guest and his longtime collaborator, C. J. Vanston, which incorporate technical terms specified by Intel. Samples include the Melissa virus (which arrived in many e-mail boxes a few years ago, usually with the message, "Here is that document you asked for ... don't show anyone else ;-)") and PEBKAC, which stands for "problem exists between keyboard and chair" and is used by I.T. folks to refer to clueless users.

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