Forgotten audio formats: 8-track tapes | Ars Technica
4-track Tapes
Update! 4-Track Fidelipac Muntz (a relative of 8-Track) - YouTube
Why 8-Track Failed?
4 track & 8 track multitrack cassettes digitised to wav for remix
Who Remembers 4 Track Cassettes? | Tapeheads.net
Reel to Reel Tape Recorder Manufacturers Multi-Track - Museum of Magnetic Sound Recording
Definition of 8-track tape | PCMag
Madman Muntz and the 4 Track Stereo Cartridge | QuadraphonicQuad Home Audio Forum
Forgotten Formats: The unspeakable joy of the 4-Track cartridge - Goldmine Magazine: Record Collector & Music Memorabilia
4track 8 track | Tapeheads.net
4 track & 8 track multitrack cassettes digitised to wav for remix
Tandberg 1344 4-Track Cartridge Tape Player Manual | HiFi Engine
4-Track Stereo Tapes Coming, July 1958 Radio-Electronics - RF Cafe
4-track Tape Cartridge | Facebook
4-track tapes: Vintage cartridges from the 1960s ~ MegaMinistore
ESTECHO
Stereo-Pak - Wikipedia
Muntz 4 track cartridge player, rare 1960's tape format, Kingstereo 4 track cartridge - YouTube
Never mind 8 track; Who remembers the 4 Track?? | Steve Hoffman Music Forums
8-track tape - Wikipedia
