length expanded size cdr WAVE problems fmt ratio filename 1:25.62 15139868 B --- -- ---xx flac 0.4003 zero1986-03-03t01.flac 6:17.30 66573404 B --- -- ---xx flac 0.4639 zero1986-03-03t02.flac 11:16.62 119392268 B --- -- ---xx flac 0.4848 zero1986-03-03t03.flac 4:46.36 50535116 B --- -- ---xx flac 0.4786 zero1986-03-03t04.flac 1:55.30 20356604 B --- -- ---xx flac 0.4499 zero1986-03-03t05.flac 8:12.61 86932316 B --- -- ---xx flac 0.4885 zero1986-03-03t06.flac 6:13.30 65867804 B --- -- ---xx flac 0.4737 zero1986-03-03t07.flac 6:55.19 73250732 B --- -- ---xx flac 0.4801 zero1986-03-03t08.flac 47:03.30 498048112 B 0.4759 (8 files) App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned