Quad Product in Japan - March 1975: Billboard Chart

[JonUrban]

I thought this was interesting. Notice the cut-out totals!

 

[winopener]

Something seems wrong... for example, the sum of Polydor KK cd4 release is not correct (but the cd4 total is!); also, King released in 1974 many more cd4 than just 8, their series "4d-X" is basically all 1974 releases, at least up to 4D-23 (Gilbert O Sullivan Back to front), with just 5 titles in 1975.
What will be intresting to know is to have their catalog to see what were these titles; for example, it is very intriguing the Warner Pioneer quad switching:
1971: QS, 3 titles
1972: SQ, 27 titles
1973, QS, 7 titles, CD4, 8 titles
1974: CD4, 3 titles, and cutting out 25 SQ and 9 QS
Crazy managment? Or what else? At least A&M/Ode kept their QS releases when they moved to SQ and then CD4.
Something similar can be said for King... 80 QS releases, then 47 cutout!

Also, will be nice to know what were the Polydor QS titles and if they considered QS the ones marked as CM-4

 

[Obbop]

Where's page 64???!!!!

 

[Lucanu]

Toshiba-emi cd-4?