length expanded size cdr WAVE problems fmt ratio filename 8:25.49 89197292 B --- -- ---xx flac 0.6091 dinosaurs1983-07-15t01.flac 5:40.41 60072476 B --- -- ---xx flac 0.6055 dinosaurs1983-07-15t02.flac 8:00.16 84709676 B --- -- ---xx flac 0.6018 dinosaurs1983-07-15t03.flac 9:27.51 100138796 B --- -- ---xx flac 0.5619 dinosaurs1983-07-15t04.flac 8:43.70 92421884 B --- -- ---xx flac 0.5764 dinosaurs1983-07-15t05.flac 40:18.02 426540124 B 0.5890 (5 files) App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned