Concat / Join / Combine
Videos, Audios or Subtitles

You can concat resp. join resp. combine multiple videos, audios or subtitle files to one big file in the Turbo Concat tab:

The input files will be checked to assure that they have the same stream types (eg. 1 video and 2 audio streams). If this is not yet the case, you can prepare the files beforehand using the Convert tab.

If all the input files are of the same format turbo speed is available, which can speed up the joining by a factor of more than 10 (=Turbo Concat resp. Turbo Join). Subtitle tracks in the file can also be joined together by ticking the corresponding checkbox.

Output Pathname: Multimedia Xpert knows most common notations like ".. CD1" and will automatically generate the correct output pathname. In this example "CD1" would be removed.

Repetitions: Each part can be repeated multiple times (Looping). For example, you could produce a repetitive promotional video for a storefront with this.

Note: If you need customized options for the output file you can specify them in the field 'Output Options' of the Output Specification.

Viewing the result

The buttons in the tab Processed Files and also those behind the box 'Output Pathname' can be used to perform functions on the result.

Solutions to common concatenation problems

If the two input medias have too much differences, ffmpeg can issue strange error messages which are not really explaining the reason. In this case the solution can be to make the input files more similar before trying to concat them. You can:

• Remove superfluous streams: Be sure that all the input files have the same amount and type of streams inside. Use this page for infos on how to remove streams quickly.
  
  
• Equalizing the image extents: Choose one image size for all parts and convert each part to this size first.
  
  
• Equalizing the 'Frame Rate': Be sure that all parts have the same image frame rate an convert the non-conforming.