1970s National 1/2" EIAJ standard colour cartridge video cassettes
These are some 1/2" EIAJ standard colour cartridge video cassettes from the 70s which are used in National/Panasonic video cartridge recorders like the NV-5120A. I won these tapes off Ebay, I don't yet have a cartidge player to transfer these tapes but will get one one day. These videocassettes are single spool and when loaded in the VCR the beginning of the tape with gets fed through the internal spool on playback and record, and the tape has to be rewound before ejecting. Also an interesting fact is that because these tapes are of EIAJ standard they can be respooled on an open reel and be played on any EIAJ standard colour and B&W reel-reel VTR.