diff --git a/src/mame/drivers/cubeqst.c b/src/mame/drivers/cubeqst.c
index be2fc086c69..c0af730747b 100644
--- a/src/mame/drivers/cubeqst.c
+++ b/src/mame/drivers/cubeqst.c
@@ -665,7 +665,7 @@ ROM_START( cubeqst )
 	ROM_LOAD( "fill_board_82s129.14p", 0x400, 0x100, CRC(6b572b73) SHA1(4a065cb05c12ce34e5598341e0de0cc571b2d387) )
 
 	DISK_REGION( "laserdisc" )
-	DISK_IMAGE_READONLY_OPTIONAL( "cubeqst", 0, SHA1(5266a0a43963628464fac1719e1cefec627042a4) MD5(d2e6010f9b9d36ba50664096ec331f8d) )
+	DISK_IMAGE_READONLY_OPTIONAL( "cubeqst", 0, SHA1(d0e24bb5d0ae424e0816110ec7d6b21189044d57) )
 ROM_END
 
 /*************************************
diff --git a/src/mame/drivers/firefox.c b/src/mame/drivers/firefox.c
index c5be8bfb762..c75c273a531 100644
--- a/src/mame/drivers/firefox.c
+++ b/src/mame/drivers/firefox.c
@@ -755,7 +755,7 @@ ROM_START( firefox )
 	ROM_LOAD( "136026.119",     0x2c000,  0x4000, CRC(959471b1) SHA1(a032209a209f51d34360d5c7ad32ec62150158d2)) /* 1a */
 
 	DISK_REGION( "laserdisc" )
-	DISK_IMAGE_READONLY( "firefox", 0, SHA1(b500a834fa505e4c0649d8e5e6b7d40d4deef48d) MD5(73fb69fd20adf2800b28dc1ab58be2d4) )
+	DISK_IMAGE_READONLY( "firefox", 0, SHA1(3c4be40f55b44d0352b64c0861b6d1b650451ce7) )
 ROM_END
 
 ROM_START( firefoxa )
@@ -795,7 +795,7 @@ ROM_START( firefoxa )
 	ROM_LOAD( "136026.119",     0x2c000,  0x4000, CRC(959471b1) SHA1(a032209a209f51d34360d5c7ad32ec62150158d2)) /* 1a */
 
 	DISK_REGION( "laserdisc" )
-	DISK_IMAGE_READONLY( "firefox", 0, SHA1(b500a834fa505e4c0649d8e5e6b7d40d4deef48d) MD5(73fb69fd20adf2800b28dc1ab58be2d4) )
+	DISK_IMAGE_READONLY( "firefox", 0, SHA1(3c4be40f55b44d0352b64c0861b6d1b650451ce7) )
 ROM_END