length expanded size cdr WAVE problems fmt ratio filename 1:16.32 13481708 B --- -- ---xx flac 0.4296 lknb2013-03-10.fm.t01.flac 4:46.73 50622140 B --- -- ---xx flac 0.4549 lknb2013-03-10.fm.t02.flac 4:11.52 44398748 B --- -- ---xx flac 0.4509 lknb2013-03-10.fm.t03.flac 4:50.05 51167804 B --- -- ---xx flac 0.4662 lknb2013-03-10.fm.t04.flac 0:38.04 6713812 B -b- -- ---xx flac 0.4293 lknb2013-03-10.fm.t05.flac 15:43.16 166384212 B 0.4542 (5 files) App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned