This is https://nyaa.si/view/1214773 with the container changed to mp4, since it took forever to seek in the flv video. No re-encoding was done, audio and video are kept the same as in flv. Literally a ``` ffmpeg -i 'hololive 1st Fes.flv' -c:v copy -c:a copy 'hololive 1st Fes.mp4' ``` Video info: ``` Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'hololive 1st Fes.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.29.100 Duration: 02:54:48.64, start: 0.000000, bitrate: 2709 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 2536 kb/s, 59.02 fps, 59 tbr, 16k tbn, 118 tbc (default) Metadata: handler_name : VideoHandler Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 160 kb/s (default) Metadata: handler_name : SoundHandler ```