The video content within a VOB container is encoded using the older MPEG-2 standard .

If you have tried to open a video file on Windows 11 only to find it has a extension, you are likely dealing with a DVD movie or a ripped disc. By default, Windows 11 does not include the necessary codecs to play these files easily.

If you want to play the video on other devices (like a phone or tablet) or edit it in video editing software, playing the raw VOB file might not be enough. The best solution is to convert the VOB file into a modern format like MP4 (H.264).