WHY ISN'T THE SLIDE-SHOW MODULE IN LIGHTROOM 5.7 ACCEPTING ANY MUSIC FILES I TRY TO ADD TO THE SLIDE-
I'm having the same problem. Running LR 5.7 on a Dell Inspiron 530 with Windows 7. Just tried adding music to my first slide show. LR finds the mp3 file I want to add but then has an "exclamation point" error message saying "The selected file is not a valid music file". The mp3 file otherwise plays fine in other applications. Adobe, please fix this!