A better option instead of reverse engineering old software would be to make a video player. In fact, one already exists, you can find it here. Not sure how you could swing downloading videos from Nintendo, though, but this would work for your own content.
At This point you are screwed read the WiiBrew article for the Brick. It tells you that if you didn't have Priiloader or BootMii as Boot2 it is the hypothetical equivalent to a full brick.
First off, Homebrew (CAN) be piracy although most of the time isn't. And you would need to format the SD card unfortunately delete homebrew then reinstall it using Letterbomb, Flashhax or any other exploit with the hackmii installer on 4.3 .
You ever try soaper powder/qauludes? I did once and like a dumbass drank beer on top of taking, I woke up laying in my backyard in the pouring rain, it knocked me out. I have not seen it around in many many years.