Perhaps you know this already, but Voyager 2 actually uses an tape recorder for data storage. I assume that all other options were either too fragile or too expensive back when it was built.
The vehicle records flight and sensor data to tape, and then periodically broadcasts that back to earth. As of 2022 the tape drive appears to be still working [1].
I believe tape was chosen mostly for capacity reasons. The Voyager DTR can store 109 megabytes, which was impractically large for any other storage medium.
The vehicle records flight and sensor data to tape, and then periodically broadcasts that back to earth. As of 2022 the tape drive appears to be still working [1].
[1] https://space.stackexchange.com/a/15291