http://www.tmeeco.eu/SMD/BIOS/MegaCD%20J%201.00C.BIN
Japanese MegaCD BIOS 1.00C
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Japanese MegaCD BIOS 1.00C
I was given a chance to dump a new Mega CD BIOS, Japanese version 1.00C and here it is :
http://www.tmeeco.eu/SMD/BIOS/MegaCD%20J%201.00C.BIN
http://www.tmeeco.eu/SMD/BIOS/MegaCD%20J%201.00C.BIN
Mida sa loed ? Nagunii aru ei saa 
http://www.tmeeco.eu
Files of all broken links and images of mine are found here : http://www.tmeeco.eu/FileDen
http://www.tmeeco.eu
Files of all broken links and images of mine are found here : http://www.tmeeco.eu/FileDen
Re: Japanese MegaCD BIOS 1.00C
I remember seeing that "pre-retail" unit. Glad to see the boot rom got dumped!
It also predates the official rom identification number (not marked as EPR/MPR-14088x).
For the record,
EPR-14088B - ver 1.00g
EPR-14088C - ver 1.00l
EPR-14088D - ver 1.00o
EPR-14088E - ver 1.00p
MPR-14088H - ver 1.00S
That leaves EPR-14088, and EPR-14088A, F, and G undumped - if they were ever even released. One of the service manuals mentions EPR-14088A as being very buggy. Rev H was I guess the one deemed stable enough to be turned into a mass produced chip, getting mask rom prints instead of just EPROMs.
It also predates the official rom identification number (not marked as EPR/MPR-14088x).
For the record,
EPR-14088B - ver 1.00g
EPR-14088C - ver 1.00l
EPR-14088D - ver 1.00o
EPR-14088E - ver 1.00p
MPR-14088H - ver 1.00S
That leaves EPR-14088, and EPR-14088A, F, and G undumped - if they were ever even released. One of the service manuals mentions EPR-14088A as being very buggy. Rev H was I guess the one deemed stable enough to be turned into a mass produced chip, getting mask rom prints instead of just EPROMs.