diff --git a/src/mame/drivers/ksys573.cpp b/src/mame/drivers/ksys573.cpp
index 154f5653b62..bd2bf50b7b1 100644
--- a/src/mame/drivers/ksys573.cpp
+++ b/src/mame/drivers/ksys573.cpp
@@ -4603,6 +4603,27 @@ ROM_START( pcnfrk3m )
 	DISK_IMAGE_READONLY( "a23kaa02", 0, BAD_DUMP SHA1(5b853cc25eb583ed36d8cd402235b4f5c9ce065a) )
 ROM_END
 
+ROM_START( pcnfrk4m )
+	SYS573_BIOS_A
+
+	ROM_REGION( 0x0001014, "cassette:game:eeprom", 0 )
+	ROM_LOAD( "gea25aaa.u1",   0x000000, 0x001014, BAD_DUMP CRC(04a5cffa) SHA1(ce7316ebdddeee326b0f4301f9a7c56498a95e70) )
+
+	ROM_REGION( 0x200000, "29f016a.31m", 0 ) /* onboard flash */
+	ROM_LOAD( "gea25aaa.31m", 0x000000, 0x200000, CRC(557093c2) SHA1(80e8eecf3248e890f9cce70859b6092725c4918c) )
+	ROM_REGION( 0x200000, "29f016a.27m", 0 ) /* onboard flash */
+	ROM_LOAD( "gea25aaa.27m", 0x000000, 0x200000, CRC(118fa45a) SHA1(6bc6129e328f6f97a27b9f524066297b29efff5a) )
+
+	ROM_REGION( 0x000008, "cassette:game:id", 0 )
+	ROM_LOAD( "gea25aaa.u6",   0x000000, 0x000008, BAD_DUMP CRC(ce84419e) SHA1(839e8ee080ecfc79021a06417d930e8b32dfc6a1) )
+
+	DISK_REGION( "cdrom0" )
+	DISK_IMAGE_READONLY( "a25aaa02", 0, BAD_DUMP SHA1(72876091b753b9697c48f51cfd0c512c28e173a6) )
+
+	DISK_REGION( "multisession" )
+	DISK_IMAGE_READONLY( "a25aba02", 0, BAD_DUMP SHA1(eb8eed41c715f39a426433224671adc36d4b0262) )
+ROM_END
+
 ROM_START( pcnfrk5m )
 	SYS573_BIOS_A
 
@@ -4821,7 +4842,8 @@ GAME( 2000, ddrusa,    sys573,   ddrusa,     ddr,       ksys573_state, 0,
 GAME( 2000, ddr4mp,    sys573,   ddr3mp,     ddr,       ksys573_state, 0,        ROT0,  "Konami", "Dance Dance Revolution 4th Mix Plus (G*A34 VER. JAA)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_NOT_WORKING ) /* BOOT VER 1.9 */
 GAME( 2000, ddr4mps,   sys573,   ddr4ms,     ddrsolo,   ksys573_state, 0,        ROT0,  "Konami", "Dance Dance Revolution 4th Mix Plus Solo (G*A34 VER. JBA)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_NOT_WORKING ) /* BOOT VER 1.9 */
 GAME( 2000, dmx2m,     sys573,   dmx,        dmx,       ksys573_state, 0,        ROT0,  "Konami", "Dance Maniax 2nd Mix (G*A39 VER. JAA)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_NOT_WORKING ) /* BOOT VER 1.9 */
-GAME( 2000, drmn4m,    sys573,   drmn4m,     drmn,      ksys573_state, 0,        ROT0,  "Konami", "DrumMania 4th Mix (G*A25 VER. JAA)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_NOT_WORKING ) /* BOOT VER 1.8 */
+GAME( 2000, pcnfrk4m,  sys573,   drmn4m,     drmn,      ksys573_state, 0,        ROT0,  "Konami", "Percussion Freaks 4th Mix (G*A25 VER. AAA)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_NOT_WORKING ) /* BOOT VER 1.9 */
+GAME( 2000, drmn4m,    pcnfrk4m, drmn4m,     drmn,      ksys573_state, 0,        ROT0,  "Konami", "DrumMania 4th Mix (G*A25 VER. JAA)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_NOT_WORKING ) /* BOOT VER 1.8 */
 GAME( 2001, gtrfrk5m,  sys573,   gtrfrk5m,   gtrfrks,   ksys573_state, 0,        ROT0,  "Konami", "Guitar Freaks 5th Mix (G*A26 VER. JAA)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_NOT_WORKING ) /* BOOT VER 1.9 */
 GAME( 2001, ddr5m,     sys573,   ddr5m,      ddr,       ksys573_state, 0,        ROT0,  "Konami", "Dance Dance Revolution 5th Mix (G*A27 VER. JAA)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_NOT_WORKING ) /* BOOT VER 1.9 */
 GAME( 2001, dmx2majp,  sys573,   dmx,        dmx,       ksys573_state, 0,        ROT0,  "Konami", "Dance Maniax 2nd Mix Append J-Paradise (G*A38 VER. JAA)", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND | MACHINE_NOT_WORKING ) /* BOOT VER 1.9 */
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 1790fd7dc37..41171d4a86d 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -17298,6 +17298,7 @@ mamboagg                        // 2001 - Mambo A Go-Go (GQA40 VER. JAB)
 mamboagga                       // 2001 - Mambo A Go-Go e-Amusement (GQA40 VER. JRB)
 mrtlbeat                        // 2002 - Martial Beat (Martial Beat (G*B47 VER. JBA)
 pcnfrk3m                        // 2000 - Percussion Freaks 3rd Mix (G*A23 VER. KAA)
+pcnfrk4m                        // 2000 - Percussion Freaks 4rd Mix (G*A25 VER. AAA)
 pcnfrk5m                        // 2001 - Percussion Freaks 5th Mix (G*B05 VER. KAA)
 pnchmn                          // 2000 - Punch Mania: Hokuto No Ken (GQ918 VER. JAB)
 pnchmn2                         // 2000 - Punch Mania 2: Hokuto No Ken (GQA09 JAA)