I started getting cassette players working again when I had kids - I had lots of old cassettes with stories still, and after looking into a lot of stuff determined that it is one of the best physical storage formats for that kind of content for kids we currently have. Its major advantage is that it automatically saves state, and the state saving is player-independent. Add to that that players typically have large clu…
Basically the same story here for me. I have a trove of audiobooks I've carted around with me from house to house since I left home which my kids now eagerly pick from each night to listen to at bedtime. I've even supplemented my collection considerably since from eBay and the like. It's just such a great medium. Fairly resilient, incredibly easy to use, compact, cheap ish. And of course there's the heady dose of nos…
For kids: Just William (read by Martin Jarvis) and PG Wodehouse Wooster books (don't recall who read that).
Early Eddie Izzard shows were also memorably good as audio. Very quotable.
There's a gigantic, not always unofficial, archive of Just a Minute online, which is excellent car journey material. This is the first 5 series, but there's 80-plus series of it in total https://archive.org/details/Just-A-Minute