diff --git a/src/mame/drivers/cybertnk.c b/src/mame/drivers/cybertnk.c
index 6640738dd99..3eeb17d16e8 100644
--- a/src/mame/drivers/cybertnk.c
+++ b/src/mame/drivers/cybertnk.c
@@ -808,17 +808,15 @@ ROM_START( cybertnk )
 	ROM_LOAD16_BYTE( "subh",   0x00001, 0x10000, CRC(1af7ad58) SHA1(450c65289729d74cd4d17e11be16469246e61b7d) )
 
 	ROM_REGION( 0x8000, "audiocpu", 0 )
-	ROM_LOAD( "ss1",    0x0000, 0x8000, CRC(c3ba160b) SHA1(cfbfcad443ff83cd4e707f045a650417aca03d85) )
+	ROM_LOAD( "ss5.37",    0x0000, 0x8000, CRC(c3ba160b) SHA1(cfbfcad443ff83cd4e707f045a650417aca03d85) )
 
-	ROM_REGION( 0x80000, "ym1", ROMREGION_ERASEFF )
-	ROM_LOAD( "ss2",    0x00000, 0x20000, CRC(da4b8733) SHA1(177372a53fd49629d1cda83bdd324ee90fbcdbb5) )
-	/*The following two are identical*/
-	ROM_LOAD( "ss3",    0x20000, 0x20000, CRC(cecdea53) SHA1(7e6a6499cab4720f4b6d6d8988bb9dd5766511ab) )
-	ROM_LOAD( "ss4",    0x40000, 0x20000, CRC(cecdea53) SHA1(7e6a6499cab4720f4b6d6d8988bb9dd5766511ab) )
-	//ss5?
+	ROM_REGION( 0x40000, "ym1", ROMREGION_ERASEFF )
+	ROM_LOAD( "ss1.10",    0x00000, 0x20000, CRC(27d1cf94) SHA1(26246f217192bcfa39692df6d388640d385e9ed9) )
+	ROM_LOAD( "ss3.11",    0x20000, 0x20000, CRC(a327488e) SHA1(b55357101e392f50f0cf75cf496a3ff4b79b2633) )
 
 	ROM_REGION( 0x80000, "ym2", ROMREGION_ERASEFF )
-	ROM_COPY( "ym1", 0x00000, 0x00000, 0x60000 )
+	ROM_LOAD( "ss2.31",    0x00000, 0x20000, CRC(27d1cf94) SHA1(26246f217192bcfa39692df6d388640d385e9ed9) )
+	ROM_LOAD( "ss4.32",    0x20000, 0x20000, CRC(a327488e) SHA1(b55357101e392f50f0cf75cf496a3ff4b79b2633) )
 
 	ROM_REGION( 0x40000, "gfx1", 0 )
 	ROM_LOAD( "s09", 0x00000, 0x10000, CRC(69e6470c) SHA1(8e7db6988366cae714fff72449623a7977af1db1) )