x_hiro11 wrote:If there is a tutorial, it will be fine. I can learn how to write bms code so that I don't have to ask for help every time in the forum.
You don't need how to write a bms script. You need to learn how reverse engineering formats and executable code running on various platforms for figuring out file formats, compressions and encryption algorithms... basically the 99% of the job, quickbms is just 1%.
In this case you have an mp4 container with all the field non-encrypted and the video data that may or may not be encrypted. Probably it's a custom codec or customized format for avoiding that a normal player can play it.