length expanded size cdr WAVE problems fmt ratio filename 2:13.38 23550620 B --- -- ---xx flac 0.3882 gpn2013-07-06.ccm4.t01.flac 6:00.24 63560492 B --- -- ---xx flac 0.5192 gpn2013-07-06.ccm4.t02.flac 4:32.60 48121964 B --- -- ---xx flac 0.5299 gpn2013-07-06.ccm4.t03.flac 3:58.67 42140828 B --- -- ---xx flac 0.5118 gpn2013-07-06.ccm4.t04.flac 5:20.12 56476268 B --- -- ---xx flac 0.4674 gpn2013-07-06.ccm4.t05.flac 2:57.61 31366316 B --- -- ---xx flac 0.5138 gpn2013-07-06.ccm4.t06.flac 3:15.15 34433324 B --- -- ---xx flac 0.4637 gpn2013-07-06.ccm4.t07.flac 4:57.12 52419068 B --- -- ---xx flac 0.5519 gpn2013-07-06.ccm4.t08.flac 7:06.02 75151148 B --- -- ---xx flac 0.5312 gpn2013-07-06.ccm4.t09.flac 6:30.23 68850140 B --- -- ---xx flac 0.5136 gpn2013-07-06.ccm4.t10.flac 46:52.14 496070168 B 0.5078 (10 files) App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned