Use APKPure App
Get Force Media Rescanner old version APK for Android
Belanja Google Play di web. Beli dan nikmati langsung di ponsel atau tablet Android Anda tanpa perlu sinkronisasi.
Small app I wrote to delete all music from the MediaStore and force a media rescan.
This should help with duplicates.
Testing needed.
Credit to Bill Sinclair for the idea.
See related: http://forum.xda-developers.com/showthread.php?t=1847586
Of course now that I've seen this post, now I have to write another app to scan for empty _data tags.