Rygar NES cartridge

MAME 0.227

E:\Presario\PresarioD\old_hard_drives\four\EPROM\HNTNDO>c:\games\mame_command\mame64 -romident RRYGAR.PRG 
Identifying RRYGAR.PRG....
RRYGAR.PRG          NO MATCH

E:\Presario\PresarioD\old_hard_drives\four\EPROM\HNTNDO>c:\games\mame_command\mame64 -romident RYGAR.PRG 
Identifying RYGAR.PRG....
RYGAR.PRG           NO MATCH