Check the user manuals for your music devices and see if they support USB 3 devices. Since you were able to put mp3 files on them I doubt the problem is with the flash drives themselves.
You weren’t putting the mp3 files in SecureAccess were you?
Check the user manuals for your music devices and see if they support USB 3 devices. Since you were able to put mp3 files on them I doubt the problem is with the flash drives themselves.
You weren’t putting the mp3 files in SecureAccess were you?