diff --git a/src/mame/drivers/kaneko16.c b/src/mame/drivers/kaneko16.c
index 03c739b7607..43ac20d3bc9 100644
--- a/src/mame/drivers/kaneko16.c
+++ b/src/mame/drivers/kaneko16.c
@@ -3728,19 +3728,19 @@ Game can be ROM Swapped onto a Shogun Warriors board and works
 
 ROM_START( brapboys ) /* Single PCB, fully populated, no rom sub board */
 	ROM_REGION( 0x040000, "maincpu", 0 )			/* 68000 Code */
-	ROM_LOAD16_BYTE( "rb-030.u61", 0x000000, 0x020000, CRC(ccbe9a53) SHA1(b96baf0ecbf6550bfaf8e512d9275c53a3928bee) )
-	ROM_LOAD16_BYTE( "rb-031.u62", 0x000001, 0x020000, CRC(c72b8dda) SHA1(450e1fb8acb140fa0ab23630daad82924f7ce72b) )
+	ROM_LOAD16_BYTE( "rb-030.u61", 0x000000, 0x020000, CRC(ccbe9a53) SHA1(b96baf0ecbf6550bfaf8e512d9275c53a3928bee) ) /* eprom labeled RB-030/U61-01 */
+	ROM_LOAD16_BYTE( "rb-031.u62", 0x000001, 0x020000, CRC(c72b8dda) SHA1(450e1fb8acb140fa0ab23630daad82924f7ce72b) ) /* eprom labeled RB-031/U62-01 */
 
 	ROM_REGION( 0x020000, "cpu1", 0 )			/* MCU Code */
-	ROM_LOAD( "rb-040.u33",  0x000000, 0x020000, CRC(757c6e19) SHA1(0f1c37b1b1eb6b230c593e4648c4302f413a61f5) )
+	ROM_LOAD( "rb-040.u33",  0x000000, 0x020000, CRC(757c6e19) SHA1(0f1c37b1b1eb6b230c593e4648c4302f413a61f5) ) /* eprom labeled RB-040/U33-00 */
 
 	ROM_REGION( 0x800000, "gfx1", 0 )	/* Sprites */
-	ROM_LOAD( "rb-020.c2",  0x000000, 0x100000, CRC(ce220d38) SHA1(b88d7c89a3e1a826bf19a1fa692ec77c944596d9) )
-	ROM_LOAD( "rb-021.u76", 0x100000, 0x100000, CRC(74001407) SHA1(90002056ceb4e0401246950b8c3f996af0a2463c) )
-	ROM_LOAD( "rb-022.u77", 0x200000, 0x100000, CRC(cb3f42dc) SHA1(5415f15621924dd263b8fe7daaf3dc25d470b814) )
-	ROM_LOAD( "rb-023.u78", 0x300000, 0x100000, CRC(0e6530c5) SHA1(72bff46f0672927e540f4f3546ae533dd0a231e0) )
-	ROM_LOAD( "rb-024.u79", 0x400000, 0x080000, CRC(65fa6447) SHA1(551e540d7bf412753b4a7098e25e6f9d8774bcf4) ) // correct, both halves identical when dumped as larger
-	ROM_LOAD( "rb-025.u80", 0x500000, 0x040000, CRC(36cd6b90) SHA1(45c50f2652726ded67c9c24185a71a6367e09270) ) // eprom, contains title logo for this version
+	ROM_LOAD( "rb-020.u100", 0x000000, 0x100000, CRC(ce220d38) SHA1(b88d7c89a3e1a826bf19a1fa692ec77c944596d9) )
+	ROM_LOAD( "rb-021.u76",  0x100000, 0x100000, CRC(74001407) SHA1(90002056ceb4e0401246950b8c3f996af0a2463c) )
+	ROM_LOAD( "rb-022.u77",  0x200000, 0x100000, CRC(cb3f42dc) SHA1(5415f15621924dd263b8fe7daaf3dc25d470b814) )
+	ROM_LOAD( "rb-023.u78",  0x300000, 0x100000, CRC(0e6530c5) SHA1(72bff46f0672927e540f4f3546ae533dd0a231e0) )
+	ROM_LOAD( "rb-024.u79",  0x400000, 0x080000, CRC(65fa6447) SHA1(551e540d7bf412753b4a7098e25e6f9d8774bcf4) ) // correct, both halves identical when dumped as larger
+	ROM_LOAD( "rb-025.u80",  0x500000, 0x040000, CRC(36cd6b90) SHA1(45c50f2652726ded67c9c24185a71a6367e09270) ) // eprom labeled RB-025/U80-01, contains title logo for this version
 
 	ROM_REGION( 0x400000, "gfx2", 0 )	/* Tiles (scrambled) */
 	ROM_LOAD( "rb-010.u65",  0x000000, 0x100000, CRC(ffd73f87) SHA1(1a661f71976be61c22d9b962850e738ba17f1d45) )
@@ -3750,7 +3750,7 @@ ROM_START( brapboys ) /* Single PCB, fully populated, no rom sub board */
 
 	ROM_REGION( 0x100000, "oki1", 0 )
 	ROM_LOAD( "rb-000.u43",  0x000000, 0x080000, CRC(58ad1a62) SHA1(1d2643b5f6eac22682972a88d284e00de3e3b223) )
-	ROM_LOAD( "rb-003.101",  0x080000, 0x080000, CRC(2cac25d7) SHA1(0412c317bf650a93051b9304d23035efde0c026a) )
+	ROM_LOAD( "rb-003.u101", 0x080000, 0x080000, CRC(2cac25d7) SHA1(0412c317bf650a93051b9304d23035efde0c026a) ) /* eprom labeled RB-003/U43-00 however actual IC location is u101 */
 
 	ROM_REGION( 0x200000, "oki2", 0 )
 	ROM_LOAD( "rb-001.u44",  0x000000, 0x100000, CRC(7cf774b3) SHA1(3fb0a5096ce9480f97e311439042eb8cbc26efb4) )
@@ -3767,13 +3767,13 @@ ROM_START( brapboysj ) /* The Japanese version has an extra rom??? and used a ro
 	ROM_LOAD( "rb-006.u33",  0x000000, 0x020000, CRC(f1d76b20) SHA1(c571b5f28e529589ee2d7697ef5d4b60ccb66e7a) )
 
 	ROM_REGION( 0x1000000, "gfx1", 0 )	/* Sprites */
-	ROM_LOAD( "rb-020.c2",  0x000000, 0x100000, CRC(ce220d38) SHA1(b88d7c89a3e1a826bf19a1fa692ec77c944596d9) )
-	ROM_LOAD( "rb-021.u76", 0x100000, 0x100000, CRC(74001407) SHA1(90002056ceb4e0401246950b8c3f996af0a2463c) )
-	ROM_LOAD( "rb-022.u77", 0x200000, 0x100000, CRC(cb3f42dc) SHA1(5415f15621924dd263b8fe7daaf3dc25d470b814) )
-	ROM_LOAD( "rb-023.u78", 0x300000, 0x100000, CRC(0e6530c5) SHA1(72bff46f0672927e540f4f3546ae533dd0a231e0) )
-	ROM_LOAD( "rb-024.u79", 0x400000, 0x080000, CRC(65fa6447) SHA1(551e540d7bf412753b4a7098e25e6f9d8774bcf4) ) // correct, both halves identical when dumped as larger
-	ROM_LOAD( "rb-025.u4",  0x500000, 0x080000, CRC(aa795ba5) SHA1(c5256dcceded2e76f548b60c18e51d0dd0209d81) ) // eprom, special title screen
-	ROM_LOAD( "rb-026.u5",  0x580000, 0x080000, CRC(bb7604d4) SHA1(57d51ce4ea2000f9a50bae326cfcb66ec494249f) ) // eprom, logs that bounce past
+	ROM_LOAD( "rb-020.u100", 0x000000, 0x100000, CRC(ce220d38) SHA1(b88d7c89a3e1a826bf19a1fa692ec77c944596d9) )
+	ROM_LOAD( "rb-021.u76",  0x100000, 0x100000, CRC(74001407) SHA1(90002056ceb4e0401246950b8c3f996af0a2463c) )
+	ROM_LOAD( "rb-022.u77",  0x200000, 0x100000, CRC(cb3f42dc) SHA1(5415f15621924dd263b8fe7daaf3dc25d470b814) )
+	ROM_LOAD( "rb-023.u78",  0x300000, 0x100000, CRC(0e6530c5) SHA1(72bff46f0672927e540f4f3546ae533dd0a231e0) )
+	ROM_LOAD( "rb-024.u79",  0x400000, 0x080000, CRC(65fa6447) SHA1(551e540d7bf412753b4a7098e25e6f9d8774bcf4) ) // correct, both halves identical when dumped as larger
+	ROM_LOAD( "rb-025.u4",   0x500000, 0x080000, CRC(aa795ba5) SHA1(c5256dcceded2e76f548b60c18e51d0dd0209d81) ) // eprom, special title screen
+	ROM_LOAD( "rb-026.u5",   0x580000, 0x080000, CRC(bb7604d4) SHA1(57d51ce4ea2000f9a50bae326cfcb66ec494249f) ) // eprom, logs that bounce past
 
 	ROM_REGION( 0x400000, "gfx2", 0 )	/* Tiles (scrambled) */
 	ROM_LOAD( "rb-010.u65",  0x000000, 0x100000, CRC(ffd73f87) SHA1(1a661f71976be61c22d9b962850e738ba17f1d45) )
@@ -3783,7 +3783,7 @@ ROM_START( brapboysj ) /* The Japanese version has an extra rom??? and used a ro
 
 	ROM_REGION( 0x100000, "oki1", 0 )
 	ROM_LOAD( "rb-000.u43",  0x000000, 0x080000, CRC(58ad1a62) SHA1(1d2643b5f6eac22682972a88d284e00de3e3b223) )
-	ROM_LOAD( "rb-003.101",  0x080000, 0x080000, CRC(2cac25d7) SHA1(0412c317bf650a93051b9304d23035efde0c026a) )
+	ROM_LOAD( "rb-003.u101", 0x080000, 0x080000, CRC(2cac25d7) SHA1(0412c317bf650a93051b9304d23035efde0c026a) ) /* eprom labeled RB-003/U43-00 however actual IC location is u101 */
 
 	ROM_REGION( 0x200000, "oki2", 0 )
 	ROM_LOAD( "rb-001.u44",  0x000000, 0x100000, CRC(7cf774b3) SHA1(3fb0a5096ce9480f97e311439042eb8cbc26efb4) )