If I look at the MAME dumping guide for NAOMI GDRoms it looks pretty complicated. You need the modem from Sega. Don't know if you get the same checksum "our" way. You can always check by converting the CHD file back to ISO format. http://guru.mameworld.info/tutorials/du … index.html
On a side note:
each game is protected with a key chip. This is a PIC16C622A and can not be copied. It is critical that we get a dump of the decryption key contained in these chips or the emulation will go nowhere.
In other words, without that key, the dump is pretty much useless and incomplete. (aka not redump.org worthy) You might actually be better off sending the GDRom to The Guru for dumping. He has all the tools and hardware to do a proper dump. http://guru.mameworld.info/naomi/netdimm.html
Last edited by MrX_Cuci on Wed Feb 16, 2011 9:14 am, edited 1 time in total.