Which utility are you using to view this data? Are you extracting from an iOS backup? Or is your device mounted and you are viewing the file system?It looks like Apple has changed the file format used for notification sounds.
On iOS 16 and older, both ringtones and notification tones were .m4r files, essentially AAC files with a different file extension.
On iOS 17, ringtones are still .m4r files, but all the notification tones are .caf files. For some reason the new ones all have 'EncoreInfinitum' in the filename as well.
I wonder if this change has something to do with custom tones not showing up any more.
View attachment 2271639