Abstract
Editing techniques in film and television are changing rapidly. Nonlinear, disc-based systems already enjoy a substantial installed base addressing off-line, news quality, and full post-production requirements. Undoubtedly the role of the VTR in editing and post-production is diminishing, being superseded by more flexible and cost-effective nonlinear systems. This trend suggests a tapeless future, and proposals already exist for disc-based camcorders and magneto-optical (M/O) technology archiving. Technologically exciting, many such schemes capitalize on the inflexibilities and occasional unreliability built into videotape formats by the need to edit on tape. Starting from the viewpoint that all editing will be performed in a nontape environment, this paper analyzes the true expectations and requirements of a tape format. Concentrating only on tape for acquisition frees the format in many ways. Constant speed and data rate may be parameters of the past. Flying erase heads, full-width erase heads, and frame-accurate servos could be technology of the past. A cruder variable-speed recorder may suffice. A new format capable of handling compressed and full CCIR 601 quality could enjoy wide acceptance.
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