This command will stitch the first two files together into a single MP4, and replace the first file with the contents of the two files you combined. Use cd to navigate to the Corrupt File directory and enter the following: copy/b VID1.mp4+VID2.mp4 Start off by hitting Win + R, enter cmd, then click OK. It's pretty simple, and we have a handy beginner's guide to the Windows Command Prompt to help you. If you've never used Command Prompt before, this may sound overwhelming, but don't fret.

To get access to the entirety of the program and all of its features, you'll have to spend up to $149.99. If you use the free version of this tool, you'll only be able to use up to 20% of the entire video. Stellar Video Repair would be the sensible choice for you if not for the fact that it's expensive. Say, for example, you have just one corrupt video that you want to repair. The Problem With Stellar Video Repair: It's Expensive The price varies based on the features you want included, with the priciest version including expanded photo repair and recovery capabilities. Stellar Repair for Video is available for both Windows and Mac, and you can purchase a license for one or two years at a time.

The best part is that if you have multiple corrupted videos, Stellar Repair for Video can perform batch repairs, saving you time.

It can even recover videos filmed in 4K, 8K, 12K, HG, UHD, Full HD, H.265, and HEVC. Stellar Repair for Video is an app that will help bring back to life over 17 different video file formats, including MP4, MOV, AVI, MKV, AVCHD, MJPEG, WEBM, ASF, WMV, FLV, DIVX, MPEG, MTS, M4V, 3G2, 3GP, and F4V.

Cant open mp4 on mac says its corrupt