Hello All, I am trying to concat ProRes clips (no audio) into one file. Here is my command: ffmpeg -i "concat:/storage/HD_24P/HD_24P_DN002__part_0_.mov|/storage/HD_24P/HD_24P_DN002__part_1_.mov|/storage/HD_24P/HD_24P_DN002__part_2_.mov|/storage/HD_24P/HD_24P_DN002__part_3_.mov|/storage/HD_24P/HD_24P_DN002__part_4_.mov|/storage/HD_24P/HD_24P_DN002__part_5_.mov|/storage/HD_24P/HD_24P_DN002__part_6_.mov|/storage/HD_24P/HD_24P_DN002__part_7_.mov|/storage/HD_24P/HD_24P_DN002__part_8_.mov|/storage/HD_24P/HD_24P_DN002__part_9_.mov" -c copy output.mov and the console output below. It seems to finish the 1st part and then stops and prints "fps 11988 is too large" at the end. None of the clips have an fps different than 23.98. Any suggestions? Thanks Markus ffmpeg version 1.1.4 Copyright (c) 2000-2013 the FFmpeg developers built on Mar 26 2013 16:57:26 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3) configuration: --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --prefix=/usr libavutil 52. 13.100 / 52. 13.100 libavcodec 54. 86.100 / 54. 86.100 libavformat 54. 59.106 / 54. 59.106 libavdevice 54. 3.102 / 54. 3.102 libavfilter 3. 32.100 / 3. 32.100 libswscale 2. 1.103 / 2. 1.103 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 2.100 / 52. 2.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'concat:/storage/HD_24P/HD_24P_DN002__part_0_.mov|/storage/HD_24P/HD_24P_DN002__part_1_.mov|/storage/HD_24P/HD_24P_DN002__part_2_.mov|/storage/HD_24P/HD_24P_DN002__part_3_.mov|/storage/HD_24P/HD_24P_DN002__part_4_.mov|/storage/HD_24P/HD_24P_DN002__part_5_.mov|/storage/HD_24P/HD_24P_DN002__part_6_.mov|/storage/HD_24P/HD_24P_DN002__part_7_.mov|/storage/HD_24P/HD_24P_DN002__part_8_.mov|/storage/HD_24P/HD_24P_DN002__part_9_.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf54.59.106 timecode : 01:00:00:00 Duration: 00:02:47.13, start: 0.000000, bitrate: 343932 kb/s Stream #0:0(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, 28508 kb/s, 23.98 fps, 23.98 tbr, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:1(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:2(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, 41494 kb/s, 23.98 fps, 23.98 tbr, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:3(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:4(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, 40205 kb/s, 23.98 fps, 23.98 tbr, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:5(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:6(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, 38508 kb/s, 23.98 fps, 23.98 tbr, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:7(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:8(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, 33080 kb/s, 23.98 fps, 23.98 tbr, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:9(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:10(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, 37307 kb/s, 23.98 fps, 23.98 tbr, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:11(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:12(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, 39672 kb/s, 23.98 fps, 23.98 tbr, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:13(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:14(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, 39075 kb/s, 23.98 fps, 23.98 tbr, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:15(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:16(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, 29431 kb/s, 23.98 fps, 23.98 tbr, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:17(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:18(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, 16150 kb/s, 23.98 fps, 23.98 tbr, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream #0:19(eng): Data: none (tmcd / 0x64636D74) Metadata: handler_name : DataHandler timecode : 01:00:00:00 Output #0, mov, to 'output.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt timecode : 01:00:00:00 encoder : Lavf54.59.106 Stream #0:0(eng): Video: prores (apco / 0x6F637061), yuv422p10le, 1920x1080, q=2-31, 28508 kb/s, 23.98 fps, 11988 tbn, 11988 tbc Metadata: handler_name : DataHandler timecode : 01:00:00:00 Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help frame= 152 fps=0.0 q=-1.0 size= 14770kB time=00:00:06.29 bitrate=19212.0kbitsframe= 215 fps=213 q=-1.0 size= 30087kB time=00:00:08.92 bitrate=27613.5kbitsframe= 272 fps=179 q=-1.0 size= 45549kB time=00:00:11.30 bitrate=33011.9kbitsframe= 333 fps=165 q=-1.0 size= 60587kB time=00:00:13.84 bitrate=35843.0kbitsframe= 406 fps=161 q=-1.0 size= 75989kB time=00:00:16.89 bitrate=36851.9kbitsframe= 484 fps=160 q=-1.0 size= 91130kB time=00:00:20.14 bitrate=37057.9kbitsframe= 568 fps=161 q=-1.0 size= 106919kB time=00:00:23.64 bitrate=37036.9kbitsframe= 629 fps=156 q=-1.0 size= 118482kB time=00:00:26.19 bitrate=37056.1kbitsframe= 717 fps=158 q=-1.0 size= 134557kB time=00:00:29.86 bitrate=36911.2kbitsframe= 773 fps=153 q=-1.0 size= 149315kB time=00:00:32.19 bitrate=37988.3kbitsframe= 834 fps=150 q=-1.0 size= 164494kB time=00:00:34.74 bitrate=38785.7kbitsframe= 893 fps=148 q=-1.0 size= 179280kB time=00:00:37.20 bitrate=39476.0kbitsframe= 946 fps=145 q=-1.0 size= 194423kB time=00:00:39.41 bitrate=40409.3kbitsframe= 990 fps=141 q=-1.0 size= 209281kB time=00:00:41.24 bitrate=41562.3kbitsframe= 1045 fps=138 q=-1.0 size= 223841kB time=00:00:43.54 bitrate=42111.8kbitsframe= 1099 fps=136 q=-1.0 size= 238425kB time=00:00:45.79 bitrate=42649.7kbitsframe= 1161 fps=136 q=-1.0 size= 254114kB time=00:00:48.38 bitrate=43026.6kbitsframe= 1217 fps=134 q=-1.0 size= 269256kB time=00:00:50.71 bitrate=43490.9kbitsframe= 1259 fps=131 q=-1.0 size= 281055kB time=00:00:52.46 bitrate=43881.0kbitsframe= 1326 fps=132 q=-1.0 size= 296373kB time=00:00:55.26 bitrate=43932.7kbitsframe= 1389 fps=131 q=-1.0 size= 311690kB time=00:00:57.89 bitrate=44106.2kbitsframe= 1462 fps=132 q=-1.0 size= 326831kB time=00:01:00.93 bitrate=43937.8kbitsframe= 1552 fps=134 q=-1.0 size= 342709kB time=00:01:04.68 bitrate=43399.0kbitsframe= 1616 fps=134 q=-1.0 size= 358018kB time=00:01:07.35 bitrate=43541.0kbitsframe= 1680 fps=133 q=-1.0 size= 373191kB time=00:01:10.02 bitrate=43656.3kbitsframe= 1751 fps=134 q=-1.0 size= 388462kB time=00:01:12.98 bitrate=43599.0kbitsframe= 1810 fps=133 q=-1.0 size= 400404kB time=00:01:15.45 bitrate=43473.6kbitsframe= 1868 fps=132 q=-1.0 size= 415408kB time=00:01:17.86 bitrate=43701.6kbitsframe= 1960 fps=134 q=-1.0 size= 430958kB time=00:01:21.70 bitrate=43208.3kbitsframe= 2030 fps=134 q=-1.0 size= 446153kB time=00:01:24.62 bitrate=43188.5kbitsframe= 2079 fps=133 q=-1.0 size= 457048kB time=00:01:26.67 bitrate=43199.9kbitsframe= 2150 fps=133 q=-1.0 size= 472834kB time=00:01:29.63 bitrate=43215.4kbitsframe= 2521 fps=151 q=-1.0 size= 487095kB time=00:01:45.10 bitrate=37964.6kbitsframe= 3175 fps=185 q=-1.0 size= 500880kB time=00:02:12.38 bitrate=30995.1kbitsframe= 3609 fps=204 q=-1.0 size= 515834kB time=00:02:30.48 bitrate=28080.8kbitsframe= 3712 fps=204 q=-1.0 size= 531332kB time=00:02:34.77 bitrate=28121.7kbitsframe= 3806 fps=204 q=-1.0 size= 546740kB time=00:02:38.70 bitrate=28222.3kbitsframe= 3897 fps=203 q=-1.0 size= 562377kB time=00:02:42.49 bitrate=28351.4kbitsframe= 3988 fps=203 q=-1.0 size= 578072kB time=00:02:46.29 bitrate=28477.5kbits fps 11988 is too large frame= 4013 fps=202 q=-1.0 Lsize= 582494kB time=00:02:47.33 bitrate=28516.6kbits/s video:582473kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.003557%