Hello Everyone, This is my first post here on GBATemp, and I would like to kick it off with a bang by showing off a tool that I made. This tool is a .bcsar extractor and rebuilder allowing you to extract files from a .bcsar file as well as rebuild a new .bcsar from modified files. The tool is open source, and the code is available at my bitbucket account: https://bitbucket.org/Some1fromthedark/kh_ddd_bcsar_tool Version 1.0.0 is currently available there, and in the Release folder there is a .exe that has already been compiled if you don't wish to compile the code yourself. I also created a Youtube video demonstrating how to use the tool, as well as showcasing a proof of concept where I replaced Sora's blizzard sound effect in DDD with the one he has in Kingdom Hearts 1: Disclaimer: This tool was specifically developed for Kingdom Hearts DDD, and I offer no guarantee that it will work on bcsar files from other games. If you are having issues with files from other games, you can post about the problems you are encountering, and I may or may not update the tool in the future to support other games.