I trust we are all being civilised on this thread else I'll have to start sending warnings. Seems a variation on whether the units got DAB or not. I don't trust Seat manuals sometimes describe functionality that isn't in the car.
The beauty of presets you don't have to click through lots of stations you don't want to listen to 🫠. I can see if you had a few close to each other it's easier to go up and down or just decide all of these stations are rubbish except the news ones perhaps or classical and put them on the presets. Showing my age. Flac music collections does me between the news and we have to watch out we don't listen to the Archers by accident. Only the omnibus, every day story of farming folk or not for those not in the UK.
There are assorted posts and guidance of getting your music collection on SD or USB. That aforementioned manual tells you the directory limits and filename length. Images have to be no greater than 512x512... can get slightly bigger. If embedded in a file and they are too "big" it will cause the mib2 standard to reboot. Memory overflow. Took a while for me to identify what was going on, on that. Somebody had copied a home brew mp3 or flac on the SD card with a large image embedded. The album art. Broken my rigorous home music standard without telling me. All Spotify now so only use that in the car.
Mib contains a media server type of spec which you find on home dnla systems. So you save the music by artist, by album. Within the album directory have one jpeg (512x512) called say cover.jpg. Then they can be accessed either via file view or via the tags. Those tags you set up yourself if digitising your own music files otherwise they are commercially written onto the files. Those embedded graphics which had caused the
problem.
Where people go wrong with mp3s is having them all in one directory which blows the spec as per the manual. You'll read on the site cunning plans to separate them into directories. Mp3tag programs are used to hack the tags around. One of those I used to remove the embedded graphic file that was causing the reboot as the unit crashed out. That was a mib2 standard.
BTW there will be more DAB stations once the BBC gets the go ahead to broadcast their Internet only variations you see on BBC Sounds via DAB+. More choice for people that want to go up and down the DAB station list whilst driving...