@jn996c
Based on 0.189!
http://bda.retroroms.info/downloads/mame/mame-0189-full/kinst2.zip
maybe next time with more information ;-)
@All: you can use the XML-Output for getting the needed information, download it from MAMEdev site or create it yourself:
"mame64.exe -listxml >mame-0189.xml"
search for the file you are missing (list example is cutted down):
<machine name="kinst2" sourcefile="kinst.cpp">
<description>Killer Instinct 2</description>
<year>1995</year>
<manufacturer>Rare</manufacturer>
<rom name="ki2_l14p.u98" size="524288" crc="d80c937a" sha1="85a009638f2eada4c63240fc30a9e7be59afab7f" region="user1" offset="0"/>
<rom name="ki2_l1.u10" size="524288" crc="fdf6ed51" sha1="acfc9460cd5df01403b7f00b2f68c2a8734ad6d3" region="dcs" offset="0"/>
Under machine name you can see the filename or you can see the name of the parent and/or other useful information ;-)