PowerBook G3 Wallstreet ROM as video/audio data

This started off as a side-project to attempt to extract the boot chime from the ROM, to no avail. I eventually found out that the boot chimes in PowerPC Macs (and apparently the crash sound?) are embedded in some form of ADPCM format? And eventually had to stop there because this isn't where my knowledge lands.

Edit: They aren't. I managed to get the sound out. ADPCM inside the boot chime wasn't a thing until the iMac G3, or well, new world Macs.

I then discover Binary Waterfall and decide to pump this ROM through here to see if I could make out any images out of curiosity, also accidentally discovering that even this far into the Old World era the beep sound is INSIDE THE ROM???

Made with the help of Binary Waterfall: https://github.com/nimaid/binary-wate...