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The idea of radio-program recording was anathema to the networks who feared such a development would obviate wire-based transmission (i.e. the existing networks). Yet something had to be devised to delay programs for later rebroadcast and to get programing to those stations not connected to a network. The technology embraced at first was the same as that used by the music industry, with record-cutters adapted for long-form recording (slower speed; bigger platters). But quality was constricted by the performance of record-cutting systems. Several alternatives to the 'disc' appeared, with relative degrees of success. It's all laid out in the pages below...in no particular order at the moment. Enjoy!
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