Not sure if this is the right section. Sorry if it isn't.

With the new 1.70 Update for the PS4, SHAREfactory was introduced.

It is the abilty to modify, merge, cut videos, with custom music support.

Put any Mp3 file(s) on a usb stick in - /SHAREfactory/Music - , in SF when editing a video hit X, then add music. navigate to USB Import.

You can import up to 200 MB. It kinda limits us to how much we can have but you can delete and import as much as you want.

Only way i know possible to use PS4 to listen to Mp3's.