To make theses games working, edit the systems.xml file (to wait for the next version). Chnage the line
<Extensions>.zip,.7z,.chd</Extensions>
<System>
<Name>MAME</Name>
<AppPath>F:\emulateur\mame\mame64.exe</AppPath>
<RomPath>F:\emulateur\mame\roms</RomPath>
<SnapPath>F:\emulateur\mame\snap</SnapPath>
<VidPath />
<Emu selected="0">
<Cmd id="0" name="MAME" value="-rompath "%path" %file%ext %volume -skip_gameinfo -nowindow" />
</Emu>
<Extensions>.zip,.7z,.chd</Extensions>
<Active>True</Active>
<Script>False</Script>
<Database>True</Database>
</System>