well after reading through the link I posted, I used LTNFLASH to do a backup of the GS0F firmware, and then used a freeware hex editor
(here) the hex address is different from the one listed in the link (probably added more media codes before the RICOHJPN01 code)
but media codes still start around $C0000
anyway in the left side of of the hex editor you can see about where the richojpn01 information is stored, I changed offset 0xC02D5 to "1e" from "06". I'm preparing to burn a disc and see the results
yay! worked great