0h0mwdunke10s4y8zenpv_source.mp4 -

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If your "guide" is actually about how to manage or create the MP4 file itself:

Tutorial: Encoding an MP4 File - Win32 apps - Microsoft Learn

An effective step-by-step guide is built on logical sequencing.

For technical projects, you can use the Win32 Transcode API to set specific audio and video attributes like H.264 or AAC.