Found 禁じられたマリコ Kinjirareta Mariko staring Yukiko Okada

Just wanted to comment as someone who recently became a big Yukiko Okada fan and say that I'm glad you found this, and really hope you or someone ends up translating this eventually. I can't say I know Japanese, but I'd be glad to contribute anyway I can.

Also i'm not sure if I could post links, but I thought you might be interested that I found out if you search past auctions on yahoo auctions you can actually find where a few people have sold unofficial DVD sets of Kinjirareta Mariko that claim to be high quality partial commercial recordings. The last listing was sold on March 10, but If another one ever pops ups I might try to snag it and rip it to the archives. If nothing else it means that there has to be some higher quality recordings besides those ones from dailymotion out there somewhere. If I ever find them I'll def let you know.