User blog comment:Lloyd Dunamis/Ayakashi BGMs - Format Quality Change/@comment-25544160-20150121013155/@comment-1004812-20150121025329

In-game? In memory usage, it might help, but data cost won't change because the audio files are already included in the app's installation. o.o

Anyway, this won't affect the game itself in any way. This concerns only the audio files uploaded & linked in this wiki's Music page.