According to LoganB earlier in the thread, the SDK comes with "developer firmware dumps" so that's something to work off of at least until the flash chip can be dumped.
Does it? I certainly didn't see any in the SDK.
I believe he's referring to NUON_Tech_Data\Offical SDK\bin\NUON\aries-dvd-dev.bin and aries-dvd-dev-pal.bin inside the file incog just linked. Dunno for sure tho.
[EDIT] incog's right, it's probably the .cof files.
[EDIT] there's also .zcof files in there, which I'd expect are compressed cof in some way. The flash batch file in there loads the aries-dvd-dev.bin and then a bunch of zcof's.