thanks for those scans. I love that deck, it's so cuute. Don't you have full size scans, uncropped of all the pages?
I too bought that copy of What HiFi! I don’t know what happened to that particular cassette, but I’ve just been gifted a box of ‘old tapes’ and look what I found amongst them! edit: In fact there are three of them! But only one That’s box…
I was looking a little deeper into Taiyo Yuden, wow they had a ton of stuff, and still do, a multi-billion dollar company today. With CD-Rs they called their product "Master Grade Archival Media" and it looks like they were into the high end for both tapes and CD-Rs.