Are you trying to a video with specific color settings, or are you trying to repair/open a file that has "601" in the name?
In tools like Adobe Premiere Pro or DaVinci Resolve , ensure your "Color Space" is set to Rec. 601 for SD timelines. 601 mp4
If you export a "601" video as a standard MP4, you might notice the blacks look "washed out" or gray. This happens because "601" uses Limited Range (16–235) while most computer screens expect Full Range (0–255). How to Export Correctively: Are you trying to a video with specific