So every music player must store a unique copy of a music library? That's ABSURD! Are there bad apps? Sure, but PCs have had this problem for years and there h

So every music player must store a unique copy of a music library? That's ABSURD! Are there bad apps? Sure, but PCs have had this problem for years and there hasn't been the kind of meltdown you describe. The problem isn't insecure SD storage. It's bad apps using sensitive data and not storing it securely.