diff --git a/ReadMe.md b/ReadMe.md
index f1ea670b..11054798 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -3,7 +3,7 @@
 **RomWBW ReadMe** \
 Version 3.4 \
 Wayne Warthen  ([wwarthen@gmail.com](mailto:wwarthen@gmail.com)) \
-27 Dec 2023
+30 Dec 2023
 
 # Overview
 
diff --git a/ReadMe.txt b/ReadMe.txt
index 7fa7f6d5..ac8a6273 100644
--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -1,6 +1,6 @@
 RomWBW ReadMe
 Wayne Warthen (wwarthen@gmail.com)
-27 Dec 2023
+30 Dec 2023
 
 
 
diff --git a/Source/Doc/UserGuide.md b/Source/Doc/UserGuide.md
index d97b0cce..b049487d 100644
--- a/Source/Doc/UserGuide.md
+++ b/Source/Doc/UserGuide.md
@@ -3713,6 +3713,7 @@ them over any older versions of the app on your disk:
 * TALK.COM
 * RTC.COM
 * TIMER.COM
+* FAT.COM
 
 For example: `B>COPY ASSIGN.COM C:`
 
@@ -3722,9 +3723,13 @@ system and then update all copies. These applications are found in
 the Binary/Apps directory of the distribution and in all of the disk
 images.
 
-* FAT.COM
 * TUNE.COM
 
+The files normally contained on the standard ROM Disk is based on a 512K
+ROM.  If your system has a smaller size ROM, then not all of these 
+files will be included on your ROM Disk.  You will need to copy them to
+your system from the /Binary/Apps folder of the RomWBW distribution.
+
 **WARNING**: If you run a RomWBW-specific application that is not
 the appropriate for the version of RomWBW you are running, the
 application will generate an error message and abort.
diff --git a/Source/RomDsk/Build.cmd b/Source/RomDsk/Build.cmd
index 876767b6..e7ccae93 100644
--- a/Source/RomDsk/Build.cmd
+++ b/Source/RomDsk/Build.cmd
@@ -24,27 +24,27 @@ set RomApps2=fdu format survey sysgen talk timer cpuspd
 
 set RomApps=
 
-copy NUL rom128_wbw.dat
-copy NUL rom128_una.dat
+copy NUL rom128_wbw.dat  || exit /b
+copy NUL rom128_una.dat || exit /b
 
 :: MakeDisk <OutputFile> <ImageSize> <Format> <Directory> <Bios>
 
 set RomApps=%RomApps1%
 
-call :MakeDisk rom256_wbw wbw_rom256 ROM_256KB 0x20000 wbw
-call :MakeDisk rom256_una wbw_rom256 ROM_256KB 0x20000 una
+call :MakeDisk rom256_wbw wbw_rom256 ROM_256KB 0x20000 wbw || exit /b
+call :MakeDisk rom256_una wbw_rom256 ROM_256KB 0x20000 una || exit /b
 
 set RomApps=%RomApps1% %RomApps2%
 
-call :MakeDisk rom512_wbw wbw_rom512 ROM_512KB 0x60000 wbw
-call :MakeDisk rom512_una wbw_rom512 ROM_512KB 0x60000 una
+call :MakeDisk rom512_wbw wbw_rom512 ROM_512KB 0x60000 wbw || exit /b
+call :MakeDisk rom512_una wbw_rom512 ROM_512KB 0x60000 una || exit /b
 
-call :MakeDisk rom1024_wbw wbw_rom1024 ROM_1024KB 0xE0000 wbw
-call :MakeDisk rom1024_una wbw_rom1024 ROM_1024KB 0xE0000 una
+call :MakeDisk rom1024_wbw wbw_rom1024 ROM_1024KB 0xE0000 wbw || exit /b
+call :MakeDisk rom1024_una wbw_rom1024 ROM_1024KB 0xE0000 una || exit /b
 
-call :MakeDisk ram512_wbw wbw_ram512 RAM_512KB 0x40000 wbw
+call :MakeDisk ram512_wbw wbw_ram512 RAM_512KB 0x40000 wbw || exit /b
 
-call :MakeDisk ram1024_wbw wbw_ram1024 RAM_1024KB 0xC0000 wbw
+call :MakeDisk ram1024_wbw wbw_ram1024 RAM_1024KB 0xC0000 wbw || exit /b
 
 goto :eof
 
diff --git a/Source/RomDsk/ROM_512KB/FAT.COM b/Source/RomDsk/ROM_512KB/FAT.COM
new file mode 100644
index 00000000..688faa99
Binary files /dev/null and b/Source/RomDsk/ROM_512KB/FAT.COM differ
diff --git a/Source/RomDsk/ROM_512KB/LINK.COM b/Source/RomDsk/ROM_512KB/LINK.COM
deleted file mode 100644
index e188fb92..00000000
Binary files a/Source/RomDsk/ROM_512KB/LINK.COM and /dev/null differ
diff --git a/Source/RomDsk/ROM_512KB/RMAC.COM b/Source/RomDsk/ROM_512KB/RMAC.COM
deleted file mode 100644
index 9ab7206b..00000000
Binary files a/Source/RomDsk/ROM_512KB/RMAC.COM and /dev/null differ
diff --git a/Source/ver.inc b/Source/ver.inc
index 6ca89abe..672892e3 100644
--- a/Source/ver.inc
+++ b/Source/ver.inc
@@ -2,7 +2,7 @@
 #DEFINE	RMN	4
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.4.0-rc.2"
+#DEFINE BIOSVER	"3.4.0-rc.3"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP
diff --git a/Source/ver.lib b/Source/ver.lib
index 0ac7cc51..1232e784 100644
--- a/Source/ver.lib
+++ b/Source/ver.lib
@@ -3,5 +3,5 @@ rmn	equ	4
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.4.0-rc.2"
+	db	"3.4.0-rc.3"
 	endm