Searching: initdv2ja
It changed in Mame 0.214; the one in the BDA is the correct one:
https://bda.retroroms.info:82/downloads/mame/CHDs/initdv2j/gds-0026a.part1.rar
https://bda.retroroms.info:82/downloads/mame/CHDs/initdv2j/gds-0026a.part2.rar
https://bda.retroroms.info:82/downloads/mame/CHDs/initdv2j/gds-0026a.part3.rar
See https://bda.retroroms.info:82/downloads/mame/CHDs/initdv2j/gds-0026a.txt for the CHD info.