Pre-recorded Cassettes' Last Stand

In the 1990s cassette sales were falling just as their quality was improving. This video takes a look at some of the techniques used (including DIGalog) to make pre-recorded tapes sound better, with the hope of slowing their demise.
CORRECTIONS:
07:46 - "July 1992" (not July 2002)
07:55 - "August 1992" (not August 2002)
LINKS
A cassette Loader In action:
Recording onto tape using pulses sent to the record head:
(CORRECTION: This video was one linked to in a discussion on this subject (which I don't really understand)..but it apparently shows something different - nothing to do with PCM pulses sorry)
US Recorded Music Sales Graph:
Discussion of DIGalog on Tapeheads.net
The clear tapes with red hubs came from /
(But they've sold out of this colour now)
Duplication machine images from HDT duplicators
HDT are the largest manufacturer of audio cassette tapes in Europe.
My Previous Cassette Video:
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Special thanks to Jerobeam Fenderson for the end graphic.
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