diff --git a/Source/RomDsk/Build.cmd b/Source/RomDsk/Build.cmd
index e069c5a4..9947c592 100644
--- a/Source/RomDsk/Build.cmd
+++ b/Source/RomDsk/Build.cmd
@@ -68,4 +68,7 @@ cpmcp -f %DiskDef% %Output%.dat ..\zsdos\zsys_%Bios%.sys 0:zsys.sys || exit /b
 :: Mark all disk files R/O for safety
 cpmchattr -f %DiskDef% %Output%.dat r 0:*.* || exit /b
 
+:: Dump directory for reference
+cpmls -f %DiskDef% -D %Output%.dat >%Output%.cat
+
 goto :eof
diff --git a/Source/RomDsk/Clean.cmd b/Source/RomDsk/Clean.cmd
index 0b90e072..a220b86b 100644
--- a/Source/RomDsk/Clean.cmd
+++ b/Source/RomDsk/Clean.cmd
@@ -2,3 +2,4 @@
 setlocal
 
 if exist *.dat del *.dat
+if exist *.cat del *.cat
diff --git a/Source/RomDsk/Makefile b/Source/RomDsk/Makefile
index bddab70a..1066801b 100644
--- a/Source/RomDsk/Makefile
+++ b/Source/RomDsk/Makefile
@@ -1,5 +1,5 @@
 OBJECTS = rom0_wbw.dat rom0_una.dat rom128_wbw.dat rom128_una.dat rom256_wbw.dat rom256_una.dat rom384_wbw.dat rom384_una.dat rom896_wbw.dat rom896_una.dat
-OTHERS=*.dat
+OTHERS=*.dat *.cat
 
 TOOLS = ../../Tools
 include $(TOOLS)/Makefile.inc
@@ -41,3 +41,4 @@ rom0_%.dat:
 	$(CPMCP) -f $(DISKDEF) $@ ../CPM22/cpm_$(BIOS).sys 0:cpm.sys
 	$(CPMCP) -f $(DISKDEF) $@ ../ZSDOS/zsys_$(BIOS).sys 0:zsys.sys
 	$(CPMCHATTR) -f $(DISKDEF) $@ r 0:*.*
+	$(CPMLS) -f $(DISKDEF) -D $@ > $(@:.dat=.cat)
diff --git a/Source/RomDsk/ROM_896KB/UNUARCU10.CFG b/Source/RomDsk/ROM_896KB/UNARCU10.CFG
similarity index 100%
rename from Source/RomDsk/ROM_896KB/UNUARCU10.CFG
rename to Source/RomDsk/ROM_896KB/UNARCU10.CFG