This typically happens when a user re-saves an MKV file (a high-quality "container" that holds multiple audio/subtitle tracks) as an MP4 (a more widely compatible format) without removing the original extension. Key Resources for Video Conversion
Are you trying to with a file named 9700, or MKV vs MP4: Choosing the Right Streaming Format in 2026 9700.mkv.mp4
If you are looking for a "good blog post" on this topic, it is usually found in discussions about to make high-quality video files compatible with social media or mobile devices. Why you see "mkv.mp4" This typically happens when a user re-saves an