diff --git a/Source/Doc/Catalog.md b/Source/Doc/Catalog.md
index b059fa9f..34889ac5 100644
--- a/Source/Doc/Catalog.md
+++ b/Source/Doc/Catalog.md
@@ -1309,7 +1309,7 @@ Also contained on this image in User Area 1 are.
 | Floppy Disk Image: **fd_z80asm.img**
 | Hard Disk Image: **hd_z80asm.img**
 
-This disk contains 4 major components
+This disk contains 6 major components
 
 * Z80ASM is a relocating macro assembler for CP/M. It takes assembly language
 source statements from a disk file, converts them into their binary equivalent,
@@ -1319,19 +1319,20 @@ listing output may be sent to a disk file, the console and/or the printer, in
 any combination. Output files may also be generated containing cross-reference
 information on each symbol used.
 
-* Z80ASMP (Z80ASM Plus)
+* Z80ASMP (Z80ASM Plus). Referred to as the "Virtual Memory" version which 
+uses disk for working storage, thus not constrained by RAM.
 
 * SLR180 is a powerful relocating macro assembler for Z80
 compatible CP/M systems. It takes assembly language source
 statements from a disk file, converts them into their binary
 equivalent, and stores the output in either a core-image, Intel
 hex format, or relocatable object file. The mnemonics recognized
-are those of Zilog/Hitachi. The optional listing output may be
+are those of Zilog (Z180)/Hitachi. The optional listing output may be
 sent to a disk file, the console and/or the printer, in any
 combination. Output files may also be generated containing
 cross-reference information on each symbol used.
 
-* SLRMAC Intel 8080 mnemonics
+* SLRMAC relocating macro assembler for Intel 8080 mnemonics
 
 * SLRNK is a powerful linking loader for Z80-based CP/M systems.
 It takes relocatable binary information in either Microsoft or
@@ -1339,7 +1340,8 @@ SLR Systems format from a disk file, resolves external and entry
 point references, and stores the output in memory for execution
 or outputs it to a disk file.
 
-* SLRNKP (SLRNK Plus)
+* SLRNKP (SLRNK Plus). Referred to as the "Virtual Memory" version which
+uses disk for working storage, thus not constrained by RAM.
 
 * Z80DIS is an entirely new disassembler for Z80 based CP/M sys-
 tems. Z80DIS is written in TURBO PASCAL. Z80DIS generates Z80
@@ -1376,7 +1378,7 @@ User Area 0 - Assembler
 | DUMP.*      | Sample Program                              |
 | MAKESYM.COM | Symbol File .SYM file generation            |
 | MAKESYM.DOC | Documentation for MAKESYM.COM               |
-| SLR180.COM  | HD64180 Relocating Macro Assembler          |
+| SLR180.COM  | HD64180 (Z180) Relocating Macro Assembler   |
 | SLR180.DOC  | Release Notes for SLR180.COM                |
 | SLRMAC.COM  | 8080 Relocating Macro Assembler             |
 | SYNTAX.HLP  | Documentation basic usage for all SLR Tools |
diff --git a/Source/Images/d_z80asm/Readme.txt b/Source/Images/d_z80asm/Readme.txt
index 669089fb..b19e27fa 100644
--- a/Source/Images/d_z80asm/Readme.txt
+++ b/Source/Images/d_z80asm/Readme.txt
@@ -12,8 +12,14 @@ listing output may be sent to a disk file, the console and/or the printer, in
 any combination. Output files may also be generated containing cross-reference
 information on each symbol used.
 
+Z80ASM.COM
+CONFIG.COM
+
 ===== Z80ASM PLUS by SLR Systems 1985-86 Rel. v1.12 #L10068 =====
 
+Referred to as the "Virtual Memory" version which uses disk for working storage,
+thus not constrained by RAM.
+
 Z80ASMP.COM
 CONFIGP.COM
 
@@ -29,15 +35,25 @@ sent to a disk file, the console and/or the printer, in any
 combination. Output files may also be generated containing
 cross-reference information on each symbol used.
 
+SLR180.COM
+180FIG.COM
+
 ===== SLRMAC by SLR Systems 1985-86 Rel. 1.32 #K10096 =====
 
+SLRMAC is a relocating macro assembler for Intel 8080 mnemonics
+
 SLRMAC.COM
 
-===== MAKESYM SuperLinker v1.31 =====
+===== MAKESYM by SLR Systems 1985 =====
+
+MAKESYM is used to produce a .SYM file from the Symbol Table listing
+provided by Z80ASM or SLRMAC.  MAKESYM reads a .LST file, converts
+the symbol table to a format readable by ZSID, DSD80, etc,
+and writes it to a .SYM file on the same drive.
 
-MAKESYM is a utility to create symbol SYM table files
+MAKESYM.COM
 
-===== SLRNK SuperLinker v1.31 =====
+===== SLRNK SuperLinker by SLR Systems 1983-86 Rel. 1.31 #AB1234 =====
 
 SLRNK is a powerful linking loader for Z80-based CP/M systems.
 It takes relocatable binary information in either Microsoft or
@@ -45,13 +61,37 @@ SLR Systems format from a disk file, resolves external and entry
 point references, and stores the output in memory for execution
 or outputs it to a disk file.
 
+SLRNK.COM
+LNKFIG.COM
+
 ===== SLRNK+ SuperLinker+ by SLR Systems 1985-86 Rel. 2.02 #J10154 =====
 
+Referred to as the "Virtual Memory" version which uses disk for working storage,
+thus not constrained by RAM.
+
+Other features include: (advert in Micro Systems Journal Vol.1/No.1)
+* HEX files do not fill unused space
+* Intermodule crossreference
+* EIGHT separate address spaces
+* Works with FORTRAN & BASIC
+* Generate PRL & SPR files
+* Supports manual overlays
+* Full 64K output
+
 SLRNKP.COM
 
-===== SLRIB SuperLibrarian v1.30 =====
+===== SLRIB SuperLibrarian by SLR Systems 1984 Rel. 1.30 =====
 
-Library Manager
+Librarian that helps you create and maintain SLR-Format libraries.
+If you have several often used subroutines, much disk
+space can be saved by combining the separate REL modules into a
+single library file. Also, since most of the time required to
+link a small separate module is the file opening and reading, it
+is much faster to open one library file and scan it than to open
+several separate files.
+
+SLRIB.COM
+LNKFIG.COM (same as the Linker)
 
 ===== Z80DIS Disassembler v2.2 =====
 
@@ -63,6 +103,9 @@ Z80DIS has grown to 8400 lines of pascal code.
 
 Z80 Disassembler program written by KENNETH GIELOW, Palo Alto, CA.
 
+Z80DIS.COM
+ZDINSTAL.COM
+
 ===== Documentation =====
 
 The manual is available in the Doc/Language directory,