Edit Points: Picking a Protocol

If you've spent any time looking at editing systems, you may have come across terms like serial data transfer, Control-L, Control-M and ViSCA. They sound more like things you'd expect from an episode of Star Trek than features of editing systems.

What are these cryptic terms, you ask? They're names of edit control protocols. Generally speaking, protocols are the "languages" that machines use to talk to each other.

Computers use them all the time in their daily exchange with printers, CD-ROM drives and networks like the Internet. In the last decade or so, they have also become something of a standard in videotape editing systems. They let VCRs, edit controllers and switchers talk with each other to improve the accuracy and efficiency of the editi…

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