Did not have this issue with HTC One M8. Pulled SD card from old phone put in new Driod Turbo 2. Card is recognized. Browsing contents using "ES File Explorer" shows ALL music is there. Using "PowerAmp" music player shows ALL music is there. Here's where is gets strange: Using some other apps, there are more than 30-40 entire music Albums completely missing! Two examples are "My Alarm Clock" and "PlayerPro". They are both missing the exact same Albums! How can ES File Explorer and PowerAmp show all the music albums, then two other apps be missing the EXACT same music albums???