In this case, a special audio DRM removal tool will be needed in order to remove the DRM protection completely. For example, if you download any song from Apple Music Store, you'll find it's impossible to play it with Sony Walkman or other non-Apple approved devices or players. But it's a totally different story if the audios you are going to convert come with DRM protection. Thanks to the fast development of audio decoding technology, converting an audio file from one format to another is no big deal at all as there are so many free audio converters coming out every minute.
