| Clue | Source | Date |
|---|---|---|
| Format before cassettes | LA Times Daily | 20 Aug 2025 |
| Obsolete tape type | USA Today | 28 Apr 2020 |
| Old tape format | ||
| Cassette tape forerunner | ||
| Obsolete analog tape system | ||
| Obsolete tape format | ||
| Obsolete analog tape system | ||
| Two balls, and a tape | ||
| Tape type | ||
| Cassette forerunner that hipsters will embrace in 2016, mark my words |