Many phones don't support SD cards. I still have my old travel book of CDs — it's dozens & dozens of them.

(as an aside, why am I getting hit with 'you're submitting too fast' recently? I'm really not submitting that many comments!)

The Mazda Connect has two USB ports in the dashboard. You can charge a phone with one and plug a multi-terabyte portable drive full of MP3s into the other.

> You can charge a phone with one and plug a multi-terabyte portable drive full of MP3s into the other.

Will it recognise an ext4-formatted drive, or does it require FAT, NTFS or something else?

Perhaps there are two people in the car charging their phones?

I really, really don't understand the hatred for CDs. Why, someone downvoted my original comment because I noted that they can be useful for a long road trip! Honestly, I'd expect that to be non-controversial: CDs require no data connexion; they are a physical audio format, which means that they can be converted to MP3, FLAC or whatever else one likes; they are owned by you, unlike a streaming music service's tracks.

I think that they still have their use cases.