Three weeks or so ago, I asked for help getting my iTunes library to work on my new mobile phone (a Samsung Galaxy s10e). I got a load of helpful advice and I’ve now got myself a big sd card and loaded my tunes onto it. When I access the phone from File Explorer on my PC, I can see that all the files are there and I can play them on the PC from the phone’s storage files. So far so good.
Some of the music files work fine on my phone but the ones that I have uploaded to my PC in the last four or five years won’t play. I’ve tried MediaMonkey, Google Play Music and the Samsung Music player but none of them display the music files in question in their listings (neither the tracks nor the albums they’re on). I can see them in My Files on the phone (and they are made up of the right amount of data – they aren’t just empty titles) but can’t get them to play on any of the players from there. I don’t get an error message from the first 2 players and the Samsung one tells me the player doesn’t support this kind of file. But the files in question are M4A files and so are the ones that the players will play. So why does the phone/all the players have a problem with recently uploaded M4A files but not older ones?
Does anyone have any suggestions for how to fix this? All help gratefully received.