How To Merge Video Files That Are Not Completed In The Internet Download Manager (IDM)

 The steps are as follows:

1. Open the downloaded video folder of unfinished idm. for instructions how to view the folder can be viewed at How to View Files Results Download IDM Failing / Not Completed 
2. Then after the video folder visible, then we will combine them using the command prompt (cmd) . for example: file.mp4, file1.mp4, file2.mp4, etc. and for example no longer have the file extension such as files, file1, file2, etc. 
3. Open a command prompt and type copy / b file.mp4 +  file1.mp4 + file2.mp4 and then press enter 

     4. Good Luck