Depending on your goal, a "solid piece" usually refers to one of the following:
: If you are editing and looking for the best segment of your footage, you can use a player like VLC Media Player to quickly record and save a specific "piece" or trimmed version of the clip. VID_20230125_185955_923mp4
To help you find a "solid piece" for your video file , I need a little more context on what you are looking for. Depending on your goal, a "solid piece" usually
: If you need a background track, tools like VEED.io can help you upload your MP4 and layer in a music track. : If this video is a reference for
: If this video is a reference for a 3D print or model, a "solid piece" might refer to making the object manifold or filling a hollow mesh in software like Blender. Add Audio to Video - Add Music to MP4 - Free, Online - VEED