AV drives

Definition: Hard-disk drive designed for audio-visual work by (a) being able to deliver a high sustained data transfer rate (b) delaying calibration checks to idle periods. * All hard-disk drives adjust the position of the reading head from time to time to compensate for miniscule changes in disk dimensions caused by temperature changes: this causes a short interruption in data transfer: AV drives delay these calibration checks to idle times.
AV seeing you no more
By late 1990s, essentially all hard-disk drives were pretty smart about when they did their checks. In other words, most drives are AV compatible. At the same time, drives got much faster - well capable of sustaining the high data-throughput needs of video - but the bottle-neck can be caused by the connectors e.g. if you use a USB instead of a USB 2.0 lead.

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