i want to extract some brsar files but i tried with brawlbox & it said unhandled exception! what am i doing wrong?! please help me thanks in advance! also how do i successfully convert brstm wav files to mp3 i know how to convert brstm to wav but i tried to convert from wav to mp3 & it made the song too fast! im completely new to this!

Try this (https://gbatemp.net/threads/brsar-pack-and-unpacker.132117/).

i think the problem is it only works with brawl hence the name "brawlbox" because the other games have a different type of encryption or encoding or something! so does anybody know how to decrypt wii isos? please help thanks in advance!

I don't know why the MP3s would incrrease in speed... Does the WAV play normally?

I don't know why the MP3s would incrrease in speed... Does the WAV play normally?

yes the wav file plays normally

Then there shouldn't be any reason for the MP3s to increase in speed.
Import the WAVs into Audacity and export it via there.
Or you could just live with WAV...

i think the problem is my computer's hardware accelerration because it worked fine until i changed the settings (i had to change it to get windows movie maker to work)