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« Look at the VUs | Main | Which Walkman? »

Forgotten Format: The Sanyo Micro-Pack 35

In the early 1960s Philips in The Netherlands were working on creating a new compact cassette tape system. Meanwhile over in Japan, Sanyo were doing the exact same thing, but their solution was very different.

Hear the contents of the Japanese cartridge shown in the video.

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Reader Comments (13)

I really enjoy your Forgotten Formats series. Any plans on doing the Pocket Rockers?

August 31, 2017 | Unregistered CommenterNothingsense

Actually I don't think the "Capstan" is actually a capstan. It doesn't seem to directly move the tape, it moves the spools. Therefore the tape will not run at an uniform speed. It's essentially a rather botched systems designed to be _really_ cheap.

Ohh, BTW you might look at theese casettes

August 31, 2017 | Unregistered CommenterChristian Berger

It's interesting that the Video Cassette Recording System Philips first went for looks very similar to this audio tape (Single spool, square cassette). I wonder if Philips thought they had backed the wrong horse until the late 70s when they came up with their V2000 format.

I still have some of the old VCR cassettes from the early 70s, I'll never forget the unique smell.

August 31, 2017 | Unregistered Commenteral

Fascinating and superbly presented as always!

It is not obvious how the tape is held with sufficient pressure against the play head - in compact cassettes and 8-track cartridges a spring mounted pad is used to push the tape onto the heads. Evidently nonesuch in this cartridge - how is tension maintained in the length of exposed tape at the top so it is kept taught enough?

August 31, 2017 | Unregistered CommenterRoland

@Nothingsense - Yes it's one of the formats I have on the to-do pile.

August 31, 2017 | Registered CommenterTechmoan

The handwriting on the tape seems to be a list of places: NIKKO, ASAMUSHI, Mt IIMORI.and one more place which is unreadable.

August 31, 2017 | Unregistered CommenterRich

I've pinned a comment at the top under the video on YouTube where one of the viewers has given a breakdown of the tape contents.

August 31, 2017 | Registered CommenterTechmoan

As always really enjoyed the video.

Any plan to look closer at the other Dutch forgotten format, CD-I?

Kindest regards,


Eindhoven (home of Philips)

September 3, 2017 | Unregistered CommenterWim

I don't have any plans for fits more into the computer/games arena. Perhaps one day.

September 3, 2017 | Registered CommenterTechmoan

Thank you for the swift response.

Just to be sure you know (I guess you already do) the CD-i could be
upgraded with a Digital Video Cartridge which made it possible to watch
CD-i Digital Video movies and VideoCD movie on the television set.
Some titles released by Philips I own are Top Gun, Black Rain, Star Trek VI etc.

Kind regards,


September 3, 2017 | Unregistered CommenterWim

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