The good news for door-to-door salesmen is that the thing will weigh a lot less than the traditional version – and it’s a few bucks cheaper, so the quest for sales should not be any more fruitless: encyclopaedia publisher TBS Britannica Co Ltd, Tokyo, having sold over 1m copies of its $2,160, 29-volume version of the Brittanica over the past 20 years, has pared the thing down to the equivalent of six volumes and squeezed it onto Compact Disk; the disk runs to 132,000 items and provides 1m keywords; for use with the NEC PC-9800, the disk, including player, is $2,240
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