Well, we're approaching a technically accurate description of things,
but we're not there yet. Please allow me to fill in some gaps.
DDS-2 and -3 are both rotory head recording schemes not unlike common
VCRs. That said what we need concern ourselves with is the linear speed
of the head movement
Michael Graves wrote:
The early PCM decks to which someone refered were in fact Sony Betamax
inductrial VCRs with a special PCM encoding unit that converted
analogue audio to PCM data the coded it for recording as a vide signal.
These were widely used to master classical recording when
