List of magnetic tape cartridges and cassettes
Magnetic tape cartridge and magnetic tape cassette both refer to a small plastic unit containing a length of magnetic tape on at least one reel. The unit may contain a second "take-up" reel or interoperate with such a reel in an associated tape drive. At least 142 distinct types have been known to exist.
The phrase cassette tape is ambiguous in that there is no common dictionary definition so depending upon usage it has many different meanings, as for example any one the one of 106 different types of audio cassettes, video cassettes or data cassettes  listed at The Museum of Obsolete Media.
From time to time the terms tape cartridge and tape cassette are used to describe the same product.
- Analog based
- Cassette tape, a two-spool tape cassette format for analog audio recording and playback and introduced in 1963 by Philips
- DC-International, a format that was created by Grundig after Phillips had abandoned an earlier format that was being created alongside the Compact Cassette
- 8-track tape, continuous loop tape system introduced in 1964
- PlayTape, a format similar to 8-track that was created by Frank Stanton
- HiPac, a format created by Pioneer as an alternative to 8-track to be used outside of North America
- Mini-Cassette, a small cassette tape cartridge developed by Phillips for dictation machines and data storage for the Philips P2000 home computer
- Microcassette, a small cassette tape format that used the same width of magnetic tape as the Compact Cassette but in a much smaller cartridge developed by Olympus
- Picocassette, a cassette tape cartridge format that was half the size of the Microcassette made by JVC
- RCA tape cartridge, a cartridge tape created by RCA and introduced in 1958 meant to take the hassle of handling unruly tapes easier
- Elcaset, a format introduced in 1976 by Sony based on the RCA tape cartridge that was supposed to be more convenient than its predecessor
- Digital based
- Digital Tape Format, a magnetic tape data storage format developed by Sony
- Digital Audio Tape (DAT), a signal recording and playback medium developed by Sony and introduced in 1987
- Digital Compact Cassette (DCC), a magnetic tape sound recording format introduced by Philips and Matsushita in late 1992 and marketed as the successor to the standard analog Compact Cassette
- NT (cassette), a small cassette tape created by Sony that was smaller than a Picocassette only used for dictation machines but had plans to be used in music
- Videocassette, a cartridge containing videotape
- Analog based tapes
- VHS, the most successful format for consumer-level analog video recording on tape cassettes
- VHS-C, a compact VHS videocassette format for camcorders
- Betamax, another common consumer videocassette format
- Betacam, an industrial version of Betamax that was for professional use
- 8 mm video format, a popular videocassette format for camcorders
- U-matic, an earlier 3/4 inch video tape format, mostly for professional use
- Video 2000, a short lived video tape format introduced by Philips and Grundig
- Digital based tapes
- DV, a digital video tape format & codec launched to record video for both professional & amateur use
- MicroMV, the smallest videocassette ever produced and was launched by Sony in 2001
- Digital8, the digital version of Video8 (8 mm video) introduced by Sony
- D-VHS, a version of VHS used to store digital video launched in 1998
- Digital Betacam, a digital version of Betacam that delivered digital recorded video
- Digital-S, a digital version of VHS launched by JVC in 1995 to compete with Digital Betacam
- Analog based tapes
- "cassette-tape". Your Dictionary. Retrieved April 20, 2020.
A cassette, used to record and play audio. (emphasis added)
- "Meaning of cassette tape in English". Oxford Dictionary. Retrieved April 20, 2020.
A cassette of audio tape or videotape (emphasis added)
- "Cassette ... Also called cassette tape". Dictionary.com. Retrieved April 20, 2020.
a compact case ... : used for recording or playback of audio or video ..., and for storage of data by some small computer systems. ... (emphasis added)
- "Magnetic Tape for Audio". The Museum of Obsolete Media. Retrieved April 8, 2020.
- "Video Tape". The Museum of Obsolete Media. Retrieved April 8, 2020.
- "Magnetic Tape for Data". The Museum of Obsolete Media. Retrieved April 8, 2020.