Mini-cassettes? As in the mini version of regular cassettes, which

Mini-Cassette - Wikipedia

Mix Tapes - Miniature Vintage Cassette Tapes - Job Lot of Mini Cassette Tapes - Small tapes - Tiny Cassette Tapes

A Clockwork Orange — Beethoven Mini-Cassette

Transfer Cassette to CD or Digital

mini cassette player, mini cassette player Suppliers and Manufacturers at

Mini-Cassettes Ramhorn (Transformers, G1, Autobot)

Mini Cassette (Philips) – American Dictation

Best Buy: Sony 60-Minute DV Mini-Cassette Tapes DVM60PRL/5

Let's Get Small: a tribute to the mighty microcassette - Bitstreams: The Digital Collections Blog

Mini dv tape hi-res stock photography and images - Alamy

Decepticon Mini-Cassette - Transformers Wiki

Cassette tape - Wikipedia

Photos of my audio gear I took last night! All vintage except one

Rewind Museum. Philips EL 3586 portable reel to reel audio

Nice Vintage Telefunken Magnetophon 203 Deluxe Reel To Reel Player With Manula

1980's or 90's Sony TC 830 Black Reel to Reel

Vintage Ehrcorder Miniature Reel-To-Reel Transistor Tape Recorder