diff --git a/src/mame/drivers/coolridr.c b/src/mame/drivers/coolridr.c
index 212bd39211c..b49a5efc1e7 100644
--- a/src/mame/drivers/coolridr.c
+++ b/src/mame/drivers/coolridr.c
@@ -208,6 +208,11 @@ Notes:
                     315-5697 (QFP208)
                     315-5698 (QFP144)
 
+*******************************************************************************************************
+
+Note: This hardware appears to have been designed as a test-bed for a new RLE based compression system 
+      used by the zooming sprites.  It is possible that Sega planned on using this for ST-V, but 
+      decided against it. However, it pre-dates ST-V & Saturn and fits between System 32 and ST-V.
 
 ******************************************************************************************************/
 
@@ -1088,30 +1093,19 @@ ROM_START( coolridr )
 	ROM_REGION( 0x100000, "sub", 0 ) /* SH1 */
 	ROM_LOAD16_WORD_SWAP( "ep17662.12", 0x000000, 0x020000,  CRC(50d66b1f) SHA1(f7b7f2f5b403a13b162f941c338a3e1207762a0b) )
 
-	/* these 10 interleave somehow?? */
-	ROM_REGION( 0x1600000, "gfx5", ROMREGION_ERASEFF ) /* Other Roms */
+	/* these are compressed sprite data */
+	ROM_REGION( 0x2800000, "gfx5", ROMREGION_ERASEFF )
 	/* logical interleaving according to the readme? */
-	ROM_LOAD32_WORD_SWAP( "mp17640.1", 0x0000002, 0x0200000, CRC(5ecd98c7) SHA1(22027c1e9e6195d27f29a5779695d8597f68809e) )
-	ROM_LOAD32_WORD_SWAP( "mp17645.6", 0x0000000, 0x0200000, CRC(00954173) SHA1(863f32565296448ef10992dc3c0480411eb2b193) )
-	ROM_LOAD32_WORD_SWAP( "mp17641.2", 0x0400002, 0x0200000, CRC(a59b0605) SHA1(c93f84fd58f1942b40b7a55058e02a18a3dec3af) )
-	ROM_LOAD32_WORD_SWAP( "mp17646.7", 0x0400000, 0x0200000, CRC(7ae4d92e) SHA1(8a0eaa5dce112289ac5d16ad5dc7f5895e71e87b) )
-	ROM_LOAD32_WORD_SWAP( "mp17642.3", 0x0800002, 0x0200000, CRC(5f8a1827) SHA1(23179d751777436f2a4f652132001d5e425d8cd5) )
-	ROM_LOAD32_WORD_SWAP( "mp17647.8", 0x0800000, 0x0200000, CRC(082faee8) SHA1(c047b8475517f96f481c09471a77aa0d103631d6) )
-	ROM_LOAD32_WORD_SWAP( "mp17643.4", 0x0c00002, 0x0200000, CRC(44a05dd0) SHA1(32aa86f8761ec6ffceb63979c44828603c244e7d) )
-	ROM_LOAD32_WORD_SWAP( "mp17648.9", 0x0c00000, 0x0200000, CRC(0791802f) SHA1(acad55bbd22c7e955a729c8abed9509fc6f10927) )
-	ROM_LOAD32_WORD_SWAP( "mp17644.5", 0x1000002, 0x0200000, CRC(be2763c5) SHA1(1044b0a73e334337b0b9ac958df59480aedfb942) )
-	ROM_LOAD32_WORD_SWAP( "mp17649.10",0x1000000, 0x0200000, CRC(567fbc0a) SHA1(3999c99b26f13d97ac1c58de00a44049ee7775fd) )
-
-/*  ROMX_LOAD( "mp17640.1", 0x0000000, 0x0200000, CRC(5ecd98c7) SHA1(22027c1e9e6195d27f29a5779695d8597f68809e), ROM_SKIP(9) )
-    ROMX_LOAD( "mp17641.2", 0x0000001, 0x0200000, CRC(a59b0605) SHA1(c93f84fd58f1942b40b7a55058e02a18a3dec3af), ROM_SKIP(9) )
-    ROMX_LOAD( "mp17642.3", 0x0000002, 0x0200000, CRC(5f8a1827) SHA1(23179d751777436f2a4f652132001d5e425d8cd5), ROM_SKIP(9) )
-    ROMX_LOAD( "mp17643.4", 0x0000003, 0x0200000, CRC(44a05dd0) SHA1(32aa86f8761ec6ffceb63979c44828603c244e7d), ROM_SKIP(9) )
-    ROMX_LOAD( "mp17644.5", 0x0000004, 0x0200000, CRC(be2763c5) SHA1(1044b0a73e334337b0b9ac958df59480aedfb942), ROM_SKIP(9) )
-    ROMX_LOAD( "mp17645.6", 0x0000005, 0x0200000, CRC(00954173) SHA1(863f32565296448ef10992dc3c0480411eb2b193), ROM_SKIP(9) )
-    ROMX_LOAD( "mp17646.7", 0x0000006, 0x0200000, CRC(7ae4d92e) SHA1(8a0eaa5dce112289ac5d16ad5dc7f5895e71e87b), ROM_SKIP(9) )
-    ROMX_LOAD( "mp17647.8", 0x0000007, 0x0200000, CRC(082faee8) SHA1(c047b8475517f96f481c09471a77aa0d103631d6), ROM_SKIP(9) )
-    ROMX_LOAD( "mp17648.9", 0x0000008, 0x0200000, CRC(0791802f) SHA1(acad55bbd22c7e955a729c8abed9509fc6f10927), ROM_SKIP(9) )
-    ROMX_LOAD( "mp17649.10",0x0000009, 0x0200000, CRC(567fbc0a) SHA1(3999c99b26f13d97ac1c58de00a44049ee7775fd), ROM_SKIP(9) )*/
+	ROM_LOAD32_WORD_SWAP( "mpr-17640.ic1", 0x0000002, 0x0400000, CRC(981e3e69) SHA1(d242055e0359ec4b5fac4676b2f974fbc974cc68) )
+	ROM_LOAD32_WORD_SWAP( "mpr-17645.ic6", 0x0000000, 0x0400000, CRC(56968d07) SHA1(e88c3d66ea05affb4681a25d155f097bd1b5a84b) )
+	ROM_LOAD32_WORD_SWAP( "mpr-17641.ic2", 0x0800002, 0x0400000, CRC(fccc3dae) SHA1(0df7fd8b1110ba9063dc4dc40301267229cb9a35) )
+	ROM_LOAD32_WORD_SWAP( "mpr-17646.ic7", 0x0800000, 0x0400000, CRC(b77eb2ad) SHA1(b832c0f1798aca39adba840d56ae96a75346670a) )
+	ROM_LOAD32_WORD_SWAP( "mpr-17642.ic3", 0x1000002, 0x0400000, CRC(1a5bcc73) SHA1(a7df04c0a326323ea185db5f55b3e0449d76c535) )
+	ROM_LOAD32_WORD_SWAP( "mpr-17647.ic8", 0x1000000, 0x0400000, CRC(9dd9330c) SHA1(c91a7f497c1f4bd283bd683b06dff88893724d51) )
+	ROM_LOAD32_WORD_SWAP( "mpr-17643.ic4", 0x1800002, 0x0400000, CRC(5100f23b) SHA1(659c2300399ff1cbd24fb1eb18cfd6c26e06fd96) )
+	ROM_LOAD32_WORD_SWAP( "mpr-17648.ic9", 0x1800000, 0x0400000, CRC(bf184cce) SHA1(62c004ea279f9a649d21426369336c2e1f9d24da) )
+	ROM_LOAD32_WORD_SWAP( "mpr-17644.ic5", 0x2000002, 0x0400000, CRC(80199c79) SHA1(e525d8ee9f9176101629853e50cca73b02b16a38) )
+	ROM_LOAD32_WORD_SWAP( "mpr-17649.ic10",0x2000000, 0x0400000, CRC(618c47ae) SHA1(5b69ad36fcf8e70d34c3b2fc71412ce953c5ceb3) )
 ROM_END
 
 /*TODO: there must be an irq line with custom vector located somewhere that writes to here...*/