Body: <p>I have some old videos that were converted from a camcorder to DVD years ago.  On one of the DVD's, the aspect ratio is incorrect.  Most DVD players and applications seem to ignore this and play the video correctly, but some applications aren't so forgiving, and I'd like to fix the VOB files.  </p>
  
  <p>I'm wondering if there's a way that I can use ffmpeg to correct the aspect ratio in the VOB files, without having to re-encode the video (as I assume that would incur some loss of quality)?</p>
  
  <p>Not knowing anything about ffmpeg, and very little about video editing in general, I naively tried <code>ffmpeg -i VTS_01_1.VOB -c copy -aspect 4:3 test.vob</code>, but the resulting <code>test.vob</code> file still shows an incorrect (i.e. not 4:3) display aspect ratio, at least according to mediainfo.</p>
  
  <p>Here's a mediainfo dump for one of the problem files, note the DAR is 0.094, but it really should be 4:3.</p>
  
  <pre><code>General
  Complete name                            : D:\Users\Paul\Videos\Bob's Camera\2006-8\VTS_01_1.VOB
  Format                                   : MPEG-PS
  File size                                : 99.1 MiB
  Duration                                 : 1 min 39 s
  Overall bit rate mode                    : Constant
  Overall bit rate                         : 8 392 kb/s
  
  Video
  ID                                       : 224 (0xE0)
  Format                                   : MPEG Video
  Format version                           : Version 2
  Format profile                           : Main@Main
  Format settings                          : CustomMatrix / BVOP
  Format settings, BVOP                    : Yes
  Format settings, Matrix                  : Custom
  Format settings, GOP                     : M=3, N=16
  Format settings, picture structure       : Frame
  Duration                                 : 1 min 38 s
  Bit rate mode                            : Constant
  Bit rate                                 : 8 000 kb/s
  Width                                    : 720 pixels
  Height                                   : 480 pixels
  Display aspect ratio                     : 0.094
  Frame rate                               : 29.970 (30000/1001) FPS
  Standard                                 : NTSC
  Color space                              : YUV
  Chroma subsampling                       : 4:2:0
  Bit depth                                : 8 bits
  Scan type                                : Interlaced
  Scan order                               : Top Field First
  Compression mode                         : Lossy
  Bits/(Pixel*Frame)                       : 0.772
  Time code of first frame                 : 00:00:00:00
  Time code source                         : Group of pictures header
  GOP, Open/Closed                         : Closed
  Stream size                              : 94.0 MiB (95%)
  
  Audio
  ID                                       : 189 (0xBD)-128 (0x80)
  Format                                   : AC-3
  Format/Info                              : Audio Coding 3
  Commercial name                          : Dolby Digital
  Muxing mode                              : DVD-Video
  Duration                                 : 1 min 39 s
  Bit rate mode                            : Constant
  Bit rate                                 : 256 kb/s
  Channel(s)                               : 2 channels
  Channel layout                           : L R
  Sampling rate                            : 48.0 kHz
  Frame rate                               : 31.250 FPS (1536 SPF)
  Bit depth                                : 16 bits
  Compression mode                         : Lossy
  Stream size                              : 3.02 MiB (3%)
  Service kind                             : Complete Main
  </code></pre>
  
  <p>Here is the output from <code>ffmpeg -i VTS_01_1.VOB -c copy -aspect 4:3 test.vob</code>:</p>
  
  <pre><code>D:\Users\Paul\Videos\Bob's Camera\2006-8&gt;ffmpeg -i VTS_01_1.VOB -c copy -aspect 4:3 test.vob
  ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
    built with gcc 8.3.1 (GCC) 20190414
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
    libavutil      56. 22.100 / 56. 22.100
    libavcodec     58. 35.100 / 58. 35.100
    libavformat    58. 20.100 / 58. 20.100
    libavdevice    58.  5.100 / 58.  5.100
    libavfilter     7. 40.101 /  7. 40.101
    libswscale      5.  3.100 /  5.  3.100
    libswresample   3.  3.100 /  3.  3.100
    libpostproc    55.  3.100 / 55.  3.100
  Input #0, mpeg, from 'VTS_01_1.VOB':
    Duration: 00:01:39.07, start: 0.113011, bitrate: 8391 kb/s
      Stream #0:0[0x1bf]: Data: dvd_nav_packet
      Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first), 720x480 [SAR 8:9 DAR 4:3], 8000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
      Stream #0:2[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
  Overriding aspect ratio with stream copy may produce invalid files
  [svcd @ 000001394d524040] VBV buffer size not set, using default size of 230KB
  If you want the mpeg file to be compliant to some specification
  Like DVD, VCD or others, make sure you set the correct buffer size
  Output #0, svcd, to 'test.vob':
    Metadata:
      encoder         : Lavf58.20.100
      Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, top first), 720x480 [SAR 8:9 DAR 4:3], q=2-31, 8000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 29.97 tbc
      Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
  Stream mapping:
    Stream #0:1 -&gt; #0:0 (copy)
    Stream #0:2 -&gt; #0:1 (copy)
  Press [q] to stop, [?] for help
  [svcd @ 000001394d524040] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
  frame= 2967 fps=0.0 q=-1.0 Lsize=  101002kB time=00:01:39.04 bitrate=8354.3kbits/s speed= 101x
  video:96673kB audio:3096kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.236023%
  </code></pre>
  
  <p>And the results of <code>ffmpeg -i test.vob</code> afterwords:</p>
  
  <pre><code>D:\Users\Paul\Videos\Bob's Camera\2006-8&gt;ffmpeg -i test.vob
  ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
    built with gcc 8.3.1 (GCC) 20190414
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
    libavutil      56. 22.100 / 56. 22.100
    libavcodec     58. 35.100 / 58. 35.100
    libavformat    58. 20.100 / 58. 20.100
    libavdevice    58.  5.100 / 58.  5.100
    libavfilter     7. 40.101 /  7. 40.101
    libswscale      5.  3.100 /  5.  3.100
    libswresample   3.  3.100 /  3.  3.100
    libpostproc    55.  3.100 / 55.  3.100
  Input #0, mpeg, from 'test.vob':
    Duration: 00:01:39.07, start: 0.533367, bitrate: 8351 kb/s
      Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first), 720x480 [SAR 8:9 DAR 4:3], 8000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
      Stream #0:1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
  At least one output file must be specified
  </code></pre>
  
  <p>And finally mediainfo dump from the resulting <code>test.vob</code>, still showing 0.094 DAR:</p>
  
  <pre><code>General
  Complete name                            : D:\Users\Paul\Videos\Bob's Camera\2006-8\test.vob
  Format                                   : MPEG-PS
  File size                                : 98.6 MiB
  Duration                                 : 1 min 39 s
  Overall bit rate mode                    : Constant
  Overall bit rate                         : 8 352 kb/s
  
  Video
  ID                                       : 224 (0xE0)
  Format                                   : MPEG Video
  Format version                           : Version 2
  Format profile                           : Main@Main
  Format settings                          : CustomMatrix / BVOP
  Format settings, BVOP                    : Yes
  Format settings, Matrix                  : Custom
  Format settings, GOP                     : M=3, N=16
  Format settings, picture structure       : Frame
  Duration                                 : 1 min 38 s
  Bit rate mode                            : Constant
  Bit rate                                 : 8 000 kb/s
  Width                                    : 720 pixels
  Height                                   : 480 pixels
  Display aspect ratio                     : 0.094
  Frame rate                               : 29.970 (30000/1001) FPS
  Standard                                 : NTSC
  Color space                              : YUV
  Chroma subsampling                       : 4:2:0
  Bit depth                                : 8 bits
  Scan type                                : Interlaced
  Scan order                               : Top Field First
  Compression mode                         : Lossy
  Bits/(Pixel*Frame)                       : 0.772
  Time code of first frame                 : 00:00:00:00
  Time code source                         : Group of pictures header
  GOP, Open/Closed                         : Closed
  Stream size                              : 93.6 MiB (95%)
  
  Audio
  ID                                       : 189 (0xBD)-128 (0x80)
  Format                                   : AC-3
  Format/Info                              : Audio Coding 3
  Commercial name                          : Dolby Digital
  Muxing mode                              : DVD-Video
  Duration                                 : 1 min 39 s
  Bit rate mode                            : Constant
  Bit rate                                 : 256 kb/s
  Channel(s)                               : 2 channels
  Channel layout                           : L R
  Sampling rate                            : 48.0 kHz
  Frame rate                               : 31.250 FPS (1536 SPF)
  Bit depth                                : 16 bits
  Compression mode                         : Lossy
  Stream size                              : 3.02 MiB (3%)
  Service kind                             : Complete Main
  </code></pre>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-05-18T05:05:06.373Z
Comments.Text: Share full log for `ffmpeg -i VTS_01_1.VOB -c copy -aspect 4:3 TEST.VOB` and after the op, `ffmpeg -i test.vob`
Comments.UserDisplayName: Gyan
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-05-20T06:55:38.820Z
Comments.Text: thanks, I've updated above with the requested details
Comments.UserDisplayName: Paul Galbraith
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-05-20T07:04:09.710Z
Comments.Text: Input already has DAR of 4:3, and so does the output. Ignore mediainfo for now and check with one of these unforgiving applications.
Comments.UserDisplayName: Gyan
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-06-09T07:36:53.437Z
Comments.Text: Read my [long answer](https://video.stackexchange.com/a/27792/18155) which explains, why is the transcoding inevitable in your case - or at least the ffmpeg command near the end, which you may adjust for your input file.
Comments.UserDisplayName: MarianD
Tags: <ffmpeg><aspect>
Title: Lossless way to fix aspect ratio in VOB?
UserDisplayName: Paul Galbraith
ThreadText: # Lossless way to fix aspect ratio in VOB?
  
  (Asked by: username_0 on 2019-05-17)
  
  I have some old videos that were converted from a camcorder to DVD years ago. On one of the DVD's, the aspect ratio is incorrect. Most DVD players and applications seem to ignore this and play the video correctly, but some applications aren't so forgiving, and I'd like to fix the VOB files.
  
  I'm wondering if there's a way that I can use ffmpeg to correct the aspect ratio in the VOB files, without having to re-encode the video (as I assume that would incur some loss of quality)?
  
  Not knowing anything about ffmpeg, and very little about video editing in general, I naively tried `ffmpeg -i VTS_01_1.VOB -c copy -aspect 4:3 test.vob`, but the resulting `test.vob` file still shows an incorrect (i.e. not 4:3) display aspect ratio, at least according to mediainfo.
  
  Here's a mediainfo dump for one of the problem files, note the DAR is 0.094, but it really should be 4:3.
  
  ```
  General
  Complete name                            : D:\Users\username_0\Videos\Bob's Camera\2006-8\VTS_01_1.VOB
  Format                                   : MPEG-PS
  File size                                : 99.1 MiB
  Duration                                 : 1 min 39 s
  Overall bit rate mode                    : Constant
  Overall bit rate                         : 8 392 kb/s
  
  Video
  ID                                       : 224 (0xE0)
  Format                                   : MPEG Video
  Format version                           : Version 2
  Format profile                           : Main@Main
  Format settings                          : CustomMatrix / BVOP
  Format settings, BVOP                    : Yes
  Format settings, Matrix                  : Custom
  Format settings, GOP                     : M=3, N=16
  Format settings, picture structure       : Frame
  Duration                                 : 1 min 38 s
  Bit rate mode                            : Constant
  Bit rate                                 : 8 000 kb/s
  Width                                    : 720 pixels
  Height                                   : 480 pixels
  Display aspect ratio                     : 0.094
  Frame rate                               : 29.970 (30000/1001) FPS
  Standard                                 : NTSC
  Color space                              : YUV
  Chroma subsampling                       : 4:2:0
  Bit depth                                : 8 bits
  Scan type                                : Interlaced
  Scan order                               : Top Field First
  Compression mode                         : Lossy
  Bits/(Pixel*Frame)                       : 0.772
  Time code of first frame                 : 00:00:00:00
  Time code source                         : Group of pictures header
  GOP, Open/Closed                         : Closed
  Stream size                              : 94.0 MiB (95%)
  
  Audio
  ID                                       : 189 (0xBD)-128 (0x80)
  Format                                   : AC-3
  Format/Info                              : Audio Coding 3
  Commercial name                          : Dolby Digital
  Muxing mode                              : DVD-Video
  Duration                                 : 1 min 39 s
  Bit rate mode                            : Constant
  Bit rate                                 : 256 kb/s
  Channel(s)                               : 2 channels
  Channel layout                           : L R
  Sampling rate                            : 48.0 kHz
  Frame rate                               : 31.250 FPS (1536 SPF)
  Bit depth                                : 16 bits
  Compression mode                         : Lossy
  Stream size                              : 3.02 MiB (3%)
  Service kind                             : Complete Main
  
  ```
  
  Here is the output from `ffmpeg -i VTS_01_1.VOB -c copy -aspect 4:3 test.vob`:
  
  ```
  D:\Users\username_0\Videos\Bob's Camera\2006-8>ffmpeg -i VTS_01_1.VOB -c copy -aspect 4:3 test.vob
  ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
    built with gcc 8.3.1 (GCC) 20190414
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
    libavutil      56. 22.100 / 56. 22.100
    libavcodec     58. 35.100 / 58. 35.100
    libavformat    58. 20.100 / 58. 20.100
    libavdevice    58.  5.100 / 58.  5.100
    libavfilter     7. 40.101 /  7. 40.101
    libswscale      5.  3.100 /  5.  3.100
    libswresample   3.  3.100 /  3.  3.100
    libpostproc    55.  3.100 / 55.  3.100
  Input #0, mpeg, from 'VTS_01_1.VOB':
    Duration: 00:01:39.07, start: 0.113011, bitrate: 8391 kb/s
      Stream #0:0[0x1bf]: Data: dvd_nav_packet
      Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first), 720x480 [SAR 8:9 DAR 4:3], 8000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
      Stream #0:2[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
  Overriding aspect ratio with stream copy may produce invalid files
  [svcd @ 000001394d524040] VBV buffer size not set, using default size of 230KB
  If you want the mpeg file to be compliant to some specification
  Like DVD, VCD or others, make sure you set the correct buffer size
  Output #0, svcd, to 'test.vob':
    Metadata:
      encoder         : Lavf58.20.100
      Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, top first), 720x480 [SAR 8:9 DAR 4:3], q=2-31, 8000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 29.97 tbc
      Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
  Stream mapping:
    Stream #0:1 -> #0:0 (copy)
    Stream #0:2 -> #0:1 (copy)
  Press [q] to stop, [?] for help
  [svcd @ 000001394d524040] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
  frame= 2967 fps=0.0 q=-1.0 Lsize=  101002kB time=00:01:39.04 bitrate=8354.3kbits/s speed= 101x
  video:96673kB audio:3096kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.236023%
  
  ```
  
  And the results of `ffmpeg -i test.vob` afterwords:
  
  ```
  D:\Users\username_0\Videos\Bob's Camera\2006-8>ffmpeg -i test.vob
  ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
    built with gcc 8.3.1 (GCC) 20190414
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
    libavutil      56. 22.100 / 56. 22.100
    libavcodec     58. 35.100 / 58. 35.100
    libavformat    58. 20.100 / 58. 20.100
    libavdevice    58.  5.100 / 58.  5.100
    libavfilter     7. 40.101 /  7. 40.101
    libswscale      5.  3.100 /  5.  3.100
    libswresample   3.  3.100 /  3.  3.100
    libpostproc    55.  3.100 / 55.  3.100
  Input #0, mpeg, from 'test.vob':
    Duration: 00:01:39.07, start: 0.533367, bitrate: 8351 kb/s
      Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first), 720x480 [SAR 8:9 DAR 4:3], 8000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
      Stream #0:1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
  At least one output file must be specified
  
  ```
  
  And finally mediainfo dump from the resulting `test.vob`, still showing 0.094 DAR:
  
  ```
  General
  Complete name                            : D:\Users\username_0\Videos\Bob's Camera\2006-8\test.vob
  Format                                   : MPEG-PS
  File size                                : 98.6 MiB
  Duration                                 : 1 min 39 s
  Overall bit rate mode                    : Constant
  Overall bit rate                         : 8 352 kb/s
  
  Video
  ID                                       : 224 (0xE0)
  Format                                   : MPEG Video
  Format version                           : Version 2
  Format profile                           : Main@Main
  Format settings                          : CustomMatrix / BVOP
  Format settings, BVOP                    : Yes
  Format settings, Matrix                  : Custom
  Format settings, GOP                     : M=3, N=16
  Format settings, picture structure       : Frame
  Duration                                 : 1 min 38 s
  Bit rate mode                            : Constant
  Bit rate                                 : 8 000 kb/s
  Width                                    : 720 pixels
  Height                                   : 480 pixels
  Display aspect ratio                     : 0.094
  Frame rate                               : 29.970 (30000/1001) FPS
  Standard                                 : NTSC
  Color space                              : YUV
  Chroma subsampling                       : 4:2:0
  Bit depth                                : 8 bits
  Scan type                                : Interlaced
  Scan order                               : Top Field First
  Compression mode                         : Lossy
  Bits/(Pixel*Frame)                       : 0.772
  Time code of first frame                 : 00:00:00:00
  Time code source                         : Group of pictures header
  GOP, Open/Closed                         : Closed
  Stream size                              : 93.6 MiB (95%)
  
  Audio
  ID                                       : 189 (0xBD)-128 (0x80)
  Format                                   : AC-3
  Format/Info                              : Audio Coding 3
  Commercial name                          : Dolby Digital
  Muxing mode                              : DVD-Video
  Duration                                 : 1 min 39 s
  Bit rate mode                            : Constant
  Bit rate                                 : 256 kb/s
  Channel(s)                               : 2 channels
  Channel layout                           : L R
  Sampling rate                            : 48.0 kHz
  Frame rate                               : 31.250 FPS (1536 SPF)
  Bit depth                                : 16 bits
  Compression mode                         : Lossy
  Stream size                              : 3.02 MiB (3%)
  Service kind                             : Complete Main
  
  ```
  
  **Tags:** ffmpeg, aspect
  
  > **Comments:**
  > **username_1**: Share full log for `ffmpeg -i VTS_01_1.VOB -c copy -aspect 4:3 TEST.VOB` and after the op, `ffmpeg -i test.vob`  
  > **username_0**: thanks, I've updated above with the requested details  
  > **username_1**: Input already has DAR of 4:3, and so does the output. Ignore mediainfo for now and check with one of these unforgiving applications.  
  > **username_2**: Read my [long answer](https://video.stackexchange.com/a/27792/18155) which explains, why is the transcoding inevitable in your case - or at least the ffmpeg command near the end, which you may adjust for your input file.  
  
  ---
  
  ## 0 answers
  
  