Another program that works really well, and offers a wide selection of inputs and outputs, including reformatting, resizing etc, is HandBrake

It has lots of presets, or you can make-your-own.

And Handbrake also free



BIAB & RB2026 Win.(Audiophile), Windows 10 Pro & Windows 11, Cakewalk Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Session Keys Grand S & Electric R, Kontakt, Focusrite 18i20, KetronSD2, NS40M, Pioneer Active Monitors.