diff --git a/src/mame/drivers/triforce.cpp b/src/mame/drivers/triforce.cpp
index 870005c8efc..bca96416b5b 100644
--- a/src/mame/drivers/triforce.cpp
+++ b/src/mame/drivers/triforce.cpp
@@ -1021,15 +1021,17 @@ ROM_START( mkartag2 )
 	TRIFORCE_BIOS
 
 	ROM_REGION(0x21200000, "rom_board", 0)
-	ROM_LOAD( "ic9_mx29lv400cttc.bin", 0x00000000, 0x0080000, CRC(2bb9f1fe) SHA1(935511d93a0ab06436b0674bef90c790c100e0b1) )
-	ROM_LOAD( "ic1_k9f1208u0b.bin",    0x01000000, 0x4200000, CRC(e52f17ef) SHA1(1e007d3136cacb89c396b8261e3978956cc21bdd) )
-	ROM_LOAD( "ic2_k9f1208u0b.bin",    0x04200000, 0x4200000, CRC(8a6a2649) SHA1(fd4318e7fb5020c499e06fdb1996b8d40161b674) )
-	ROM_LOAD( "ic3_k9f1208u0b.bin",    0x08400000, 0x4200000, CRC(8fd44a29) SHA1(9392bc4da6541960a83e9c7b3ab4f36bc5564fb7) )
-	ROM_LOAD( "ic4_k9f1208u0b.bin",    0x0c600000, 0x4200000, CRC(ae3fb198) SHA1(c9c0beb9f6875dbf7ce015454a59481524ef3ef6) )
-	ROM_LOAD( "ic5_k9f1208u0b.bin",    0x10800000, 0x4200000, CRC(e9208514) SHA1(ad0ed3e681cd78a61d7ad3af83db20e364bb47fd) )
-	ROM_LOAD( "ic6_k9f1208u0b.bin",    0x14c00000, 0x4200000, CRC(7363697c) SHA1(997c96d0b41774a24a2e0427a703bc295e784187) )
-	ROM_LOAD( "ic7_k9f1208u0b.bin",    0x18e00000, 0x4200000, CRC(407da1d2) SHA1(c185ebd2f3d8654d8fd394c56ac9bfff7e49f125) )
-	ROM_LOAD( "ic8_k9f1208u0b.bin",    0x1d000000, 0x4200000, CRC(9ab76062) SHA1(36a6317c646da5cf682d46ca438ce05e600bc354) )
+	// DES encrypted
+	ROM_LOAD16_BYTE( "ic1_k9f1208u0b.bin",    0x00000000, 0x4200000, CRC(e52f17ef) SHA1(1e007d3136cacb89c396b8261e3978956cc21bdd) )
+	ROM_LOAD16_BYTE( "ic2_k9f1208u0b.bin",    0x00000001, 0x4200000, CRC(8a6a2649) SHA1(fd4318e7fb5020c499e06fdb1996b8d40161b674) )
+	ROM_LOAD16_BYTE( "ic3_k9f1208u0b.bin",    0x08400000, 0x4200000, CRC(8fd44a29) SHA1(9392bc4da6541960a83e9c7b3ab4f36bc5564fb7) )
+	ROM_LOAD16_BYTE( "ic4_k9f1208u0b.bin",    0x08400001, 0x4200000, CRC(ae3fb198) SHA1(c9c0beb9f6875dbf7ce015454a59481524ef3ef6) )
+	ROM_LOAD16_BYTE( "ic5_k9f1208u0b.bin",    0x10800000, 0x4200000, CRC(e9208514) SHA1(ad0ed3e681cd78a61d7ad3af83db20e364bb47fd) )
+	ROM_LOAD16_BYTE( "ic6_k9f1208u0b.bin",    0x10800001, 0x4200000, CRC(7363697c) SHA1(997c96d0b41774a24a2e0427a703bc295e784187) )
+	ROM_LOAD16_BYTE( "ic7_k9f1208u0b.bin",    0x18c00000, 0x4200000, CRC(407da1d2) SHA1(c185ebd2f3d8654d8fd394c56ac9bfff7e49f125) )
+	ROM_LOAD16_BYTE( "ic8_k9f1208u0b.bin",    0x18c00001, 0x4200000, CRC(9ab76062) SHA1(36a6317c646da5cf682d46ca438ce05e600bc354) )
+	// below contain rom board NAND block list/map (16bit words), the "block" is 2 * 32 NAND pages (512 data bytes +16 ECC?)
+	ROM_LOAD( "ic9_mx29lv400cttc.bin",        0x21000000, 0x0080000, CRC(2bb9f1fe) SHA1(935511d93a0ab06436b0674bef90c790c100e0b1) )
 
 	ROM_REGION( 0x4000, "pic", ROMREGION_ERASEFF)
 	ROM_LOAD("317-5128-com.pic", 0x00, 0x4000, CRC(0231b10c) SHA1(e060d74753a39081364e3175ac12e724ad585c33) )
@@ -1039,15 +1041,17 @@ ROM_START( mkartag2a )
 	TRIFORCE_BIOS
 
 	ROM_REGION(0x21200000, "rom_board", 0)
-	ROM_LOAD( "ic9_mx29lv400cttc.bin", 0x00000000, 0x0080000, CRC(ff854fd0) SHA1(0e42aff9a60aacd200b7a29d4d180abdab6a732e) ) // sldh
-	ROM_LOAD( "ic1_k9f1208u0b.bin",    0x01000000, 0x4200000, CRC(c5624816) SHA1(d6f2a2ff9e9e14d857a0ec810521c378ba1fabd5) ) // sldh
-	ROM_LOAD( "ic2_k9f1208u0b.bin",    0x04200000, 0x4200000, CRC(44e59a1f) SHA1(68a8c1178a33e23446980ec84486bc614f830dad) ) // sldh
-	ROM_LOAD( "ic3_k9f1208u0b.bin",    0x08400000, 0x4200000, CRC(6688e7f9) SHA1(7d1e60806c02fd765dd0981e790a698a29050aae) ) // sldh
-	ROM_LOAD( "ic4_k9f1208u0b.bin",    0x0c600000, 0x4200000, CRC(e043eac2) SHA1(0108d940a852ff03e919170957f2bca2c1a88a03) ) // sldh
-	ROM_LOAD( "ic5_k9f1208u0b.bin",    0x10800000, 0x4200000, CRC(20882926) SHA1(c802de32ca24bf4e9fbabf47fed23a91b3d614ac) ) // sldh
-	ROM_LOAD( "ic6_k9f1208u0b.bin",    0x14c00000, 0x4200000, CRC(14171ba4) SHA1(3ddace539cd8a4b53a1ef03238e8404db7dcd85e) ) // sldh
-	ROM_LOAD( "ic7_k9f1208u0b.bin",    0x18e00000, 0x4200000, CRC(bd0199df) SHA1(aafb171e9f5a4c8dc2ef55ba344a0eb310c63467) ) // sldh
-	ROM_LOAD( "ic8_k9f1208u0b.bin",    0x1d000000, 0x4200000, CRC(8ad6c7ae) SHA1(749b99a944f62aefb895a622c029656c69b3c736) ) // sldh
+	// DES encrypted
+	ROM_LOAD16_BYTE( "ic1_k9f1208u0b.bin",    0x00000000, 0x4200000, CRC(c5624816) SHA1(d6f2a2ff9e9e14d857a0ec810521c378ba1fabd5) ) // sldh
+	ROM_LOAD16_BYTE( "ic2_k9f1208u0b.bin",    0x00000001, 0x4200000, CRC(44e59a1f) SHA1(68a8c1178a33e23446980ec84486bc614f830dad) ) // sldh
+	ROM_LOAD16_BYTE( "ic3_k9f1208u0b.bin",    0x08400000, 0x4200000, CRC(6688e7f9) SHA1(7d1e60806c02fd765dd0981e790a698a29050aae) ) // sldh
+	ROM_LOAD16_BYTE( "ic4_k9f1208u0b.bin",    0x08400001, 0x4200000, CRC(e043eac2) SHA1(0108d940a852ff03e919170957f2bca2c1a88a03) ) // sldh
+	ROM_LOAD16_BYTE( "ic5_k9f1208u0b.bin",    0x10800000, 0x4200000, CRC(20882926) SHA1(c802de32ca24bf4e9fbabf47fed23a91b3d614ac) ) // sldh
+	ROM_LOAD16_BYTE( "ic6_k9f1208u0b.bin",    0x10800001, 0x4200000, CRC(14171ba4) SHA1(3ddace539cd8a4b53a1ef03238e8404db7dcd85e) ) // sldh
+	ROM_LOAD16_BYTE( "ic7_k9f1208u0b.bin",    0x18c00000, 0x4200000, CRC(bd0199df) SHA1(aafb171e9f5a4c8dc2ef55ba344a0eb310c63467) ) // sldh
+	ROM_LOAD16_BYTE( "ic8_k9f1208u0b.bin",    0x18c00001, 0x4200000, CRC(8ad6c7ae) SHA1(749b99a944f62aefb895a622c029656c69b3c736) ) // sldh
+	// below contain rom board NAND block list/map (16bit words), the "block" is 2 * 32 NAND pages (512 data bytes +16 ECC?)
+	ROM_LOAD16_BYTE( "ic9_mx29lv400cttc.bin", 0x21000000, 0x0080000, CRC(ff854fd0) SHA1(0e42aff9a60aacd200b7a29d4d180abdab6a732e) ) // sldh
 
 	ROM_REGION( 0x4000, "pic", ROMREGION_ERASEFF)
 	ROM_LOAD("317-5128-com.pic", 0x00, 0x4000, CRC(0231b10c) SHA1(e060d74753a39081364e3175ac12e724ad585c33) )