Could do one on the sound from VHS tapes because with Nicam Stereo that was actually something that was superior about them, to the point that many radio stations used them for audio recording!,(reply>), VHS had an audio-only variant called ADAT that recorded digital sound on VHS blanks.  That may be what you’re thinking of.<br><br>Radio stations also used “carts” which looked similar to 8-track tapes.  They were convenient because they held 4-5 minutes &amp; didn’t need rewinding (auto-cueing)