This is not my own compilation, but the one from David Keil.
His site is gone, but most data is still present in the WayBack machine

This page is a simplified version of David Keil's Utility Software page.
TRS-80 Model 1/III/4/4P
- Utility Software Page -
 Last updated on April 8, 2005

 

CopyCat 4.1
by Omnisoft Research

Model RAM Disk Type Size
Model 1/III/4  48k Dual-booting Model 1/III/4 6k
Contents 

  Date    Time     Packed      Size  Ratio  File                          
                                                                          
02.04.01 17:47        5128    256016    2%  COPYCAT.dsk

97-0001.ace

Floppy Doctor
by Dave Stambaugh

Model RAM Disk Type Size
Model III/4 16k - 48k Self-booting Model III/4 11k
Contents 

  Date    Time     Packed      Size  Ratio  File                          
                                                                          
12.08.99 21:10       10564     38416   27%  DOCTOR.DSK

97-0006.ace

Hyperzap 3.2c
by Hypersoft

Model RAM Disk Type Size
Model 1/III/4 16k - 48k Dual-booting Model 1/III/4 68k
Contents 

  Date    Time     Packed      Size  Ratio  File                          
                                                                          
11.01.99 17:08       11316     17664   64%  HZAP32M1.CMD                  
11.01.99 17:08        5096     17408   29%  HZAP32M3.CMD                  
26.09.00 17:07       22356    166416   13%  HYPZAP32.DSK                  
13.01.00 15:41       30080    101754   29%  HYPERZAP.TXT

97-0002.ace

Super Utility Plus
Version 2.2
by Breese/QSD, Inc.

Model RAM Disk Type Size
Model III/4 32k - 48k Self-booting Model III/4 60k
Contents 

  Date    Time     Packed      Size  Ratio  File                          
                                                                          
02.04.01 18:12       60336    256016   23%  su22.dsk

97-0003.ace

Super Utility Plus
Version 3.0 & 3.2
by Breese/QSD, Inc.

Model RAM Disk Type Size
Model 1/III/4 32k - 48k Dual-booting Model 1/III/4 182k
Contents 

  Date    Time     Packed      Size  Ratio  File                          
                                                                          
20.01.05 12:30       98344    256016   38%  SU30.DSK                      
20.01.05 12:30       87048    224016   38%  SU32.DSK

97-0004.ace

Super Utility 4/4P
by Breese/QSD, Inc.

Model RAM Disk Type Size
Model 4 64k - 128k Self-booting Model 4 40k
Contents 

  Date    Time     Packed      Size  Ratio  File                          
                                                                          
20.01.05 12:34       40496    224016   18%  SU4.DSK

97-0005.ace

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