Oh boy, lots of changes this time around. Proper command line argument handling with using the commandline package (at the expense of having a dll nearly 4x the size of the resulting OSBExtract executable!) as well as refactored code optimizations.
Extra data has been added and is optional, as well as the option of outputting to a specific directory instead of the input directory. Verbose output may help debugging issues, and a flag to change the sample rate conversion from 44.1kHz to 32kHz can be used to fix audio that sounds too high pitched and too fast.
Sappharad's method of converting ADPCM to WAV is now used instead of the original OSB Extract's, but I doubt there will be a noticeable difference on the user's end.
Updates should fix #1