diff --git a/src/mame/amiga/amiga.cpp b/src/mame/amiga/amiga.cpp
index 47c885fe523..9d2adfe5833 100644
--- a/src/mame/amiga/amiga.cpp
+++ b/src/mame/amiga/amiga.cpp
@@ -2306,12 +2306,14 @@ ROM_START( cdtv )
 	ROM_COPY("kickstart", 0x00000, 0x40000, 0x40000)
 
 	// remote control input converter, mos 6500/1 mcu
-	ROM_REGION(0x800, "rcmcu", 0)
-	ROM_LOAD("252609-02.u75", 0x000, 0x800, NO_DUMP)
+	ROM_REGION(0x1000, "rcmcu", 0)
+	ROM_LOAD("252609-02.u75", 0x000, 0x800, NO_DUMP) // internal ROM of the final version hasn't been dumped yet
+	ROM_LOAD("v1.3-1990-10-01", 0x0000, 0x1000, CRC(3c7cb7bb) SHA1(958e799897ac044fcc0f0c74c3cb5d83f3edd0c7)) // this was dumped from a pre-production CD-1000 player which had the program in external EPROM
 
 	// lcd controller, sanyo lc6554h
-	ROM_REGION(0x1000, "lcd", 0)
-	ROM_LOAD("252608-01.u62", 0x0000, 0x1000, NO_DUMP)
+	ROM_REGION(0x2000, "lcd", 0)
+	ROM_LOAD("252608-01.u62", 0x0000, 0x2000, NO_DUMP) // internal ROM of the final version hasn't been dumped yet
+	ROM_LOAD("v1.20-1990-09-26", 0x0000, 0x2000, CRC(9d69c439) SHA1(74354818ffc4d897801be705ae223717f522f8d4)) // this was dumped from a pre-production CD-1000 player which had the program in external EPROM
 ROM_END
 
 #define rom_cdtvn  rom_cdtv