Answers.Body: <p>Camtasia file format is a <strong>colsed</strong> and composed file with multiple assets and instructions called MS-CFB. The binary header does not correspond to 7zip, rar, zip or gzip. You can not conver <code>.camrec</code> from <code>ffmpeg</code> or <code>unzip</code>.</p>
  <p>In Microsoft website says: <a href="https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-cfb/68530324-9d3d-4441-9ea9-66a2c8f79567" rel="nofollow noreferrer">https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-cfb/68530324-9d3d-4441-9ea9-66a2c8f79567</a></p>
  <blockquote>
  <p>[MS-CFB]: Compound File Binary File Format</p>
  </blockquote>
  <pre><code>000000: D0CF 11E0 A1B1 1AE1 0000 0000 0000 0000 ................
  </code></pre>
  <p>And i have a <code>.camrec</code> file for the example:</p>
  <pre><code>whk@machine:~/Vídeos$ file fest.camrec;
  fest.camrec: Composite Document File V2 Document, Cannot read section info
  whk@machine:~/Vídeos$ head -n 16 fest.camrec | xxd;
  00000000: d0cf 11e0 a1b1 1ae1 0000 0000 0000 0000  ................
  </code></pre>
  <p>The best option is download Camtasia Studio and install it on a Windows machine and export the project as video file format.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-10-23T04:52:26.507Z
Answers.LastActivityDate: 2022-10-23T05:04:37.730Z
Answers.LastEditDate: 2022-10-23T05:04:37.730Z
Answers.UserDisplayName: e-info128
Body: <p>I raise such problem but in the same post I raise the solution.</p>
  <p>The first thing to know is that the .camrec format (from Camtasia) is a compressed file, so we must first decompress these files before converting them to .mp4.</p>
  <p>Using 7z it is possible to decompress a .camrec file, and generate a .avi:</p>
  <pre><code>7z e &quot;*file.camrec&quot; &quot;file.avi&quot;
  </code></pre>
  <p>The second thing, is to convert this .avi file to .mp4 with ffmpeg.</p>
  <pre><code>ffmpeg -i &quot;file.avi&quot; &quot;file.mp4&quot;
  </code></pre>
  <p>If someone has a better solution I invite you to post it here.</p>
  
Tags: <ffmpeg><mp4><avi>
Title: How to convert camrec to mp4 using ffmpeg?
UserDisplayName: GIO
ThreadText: # How to convert camrec to mp4 using ffmpeg?
  
  (Asked by: username_0 on 2022-08-09)
  
  I raise such problem but in the same post I raise the solution.
  
  The first thing to know is that the .camrec format (from Camtasia) is a compressed file, so we must first decompress these files before converting them to .mp4.
  
  Using 7z it is possible to decompress a .camrec file, and generate a .avi:
  
  ```
  7z e "*file.camrec" "file.avi"
  
  ```
  
  The second thing, is to convert this .avi file to .mp4 with ffmpeg.
  
  ```
  ffmpeg -i "file.avi" "file.mp4"
  
  ```
  
  If someone has a better solution I invite you to post it here.
  
  **Tags:** ffmpeg, mp4, avi
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2022-10-23. Score: 1
  
  Camtasia file format is a **colsed** and composed file with multiple assets and instructions called MS-CFB. The binary header does not correspond to 7zip, rar, zip or gzip. You can not conver `.camrec` from `ffmpeg` or `unzip`.
  
  In Microsoft website says: <https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-cfb/68530324-9d3d-4441-9ea9-66a2c8f79567>
  
  > [MS-CFB]: Compound File Binary File Format
  
  ```
  000000: D0CF 11E0 A1B1 1AE1 0000 0000 0000 0000 ................
  
  ```
  
  And i have a `.camrec` file for the example:
  
  ```
  whk@machine:~/Vídeos$ file fest.camrec;
  fest.camrec: Composite Document File V2 Document, Cannot read section info
  whk@machine:~/Vídeos$ head -n 16 fest.camrec | xxd;
  00000000: d0cf 11e0 a1b1 1ae1 0000 0000 0000 0000  ................
  
  ```
  
  The best option is download Camtasia Studio and install it on a Windows machine and export the project as video file format.
  
  
  ---
  
  