When converting, look for a preset like "Fast 1080p30" or "Web Optimized" to ensure smooth playback on most devices. 4. Hardware Acceleration Settings
Ensure is turned ON .
It sounds like you might be having trouble with video playback on a computer using . This is a common issue, especially with higher-resolution .mp4 files or modern codecs.
If a specific .mp4 file is stuttering or showing a black screen, it might be using a codec your hardware doesn't like (such as H.265/HEVC).
It’s free and comes with built-in codecs for almost every video type. You can download it from VideoLAN .