length expanded size cdr WAVE problems fmt ratio filename 0:27.15 4798124 B --- -- ---xx flac 0.4861 bgug2014-12-21d01t01.flac 5:51.24 61972892 B --- -- ---xx flac 0.5864 bgug2014-12-21d01t02.flac 7:24.34 78401612 B --- -- ---xx flac 0.5797 bgug2014-12-21d01t03.flac 7:44.00 81849644 B --- -- ---xx flac 0.6071 bgug2014-12-21d01t04.flac 6:18.63 66827420 B --- -- ---xx flac 0.5525 bgug2014-12-21d01t05.flac 10:27.72 110772188 B --- -- ---xx flac 0.5770 bgug2014-12-21d01t06.flac 0:45.58 8074460 B --- -- ---xx flac 0.4975 bgug2014-12-21d01t07.flac 38:59.41 412696340 B 0.5783 (7 files) App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned