From: uhclemLOSE.may09@nemesis.lonestar.org   
      
   Brian Quinn  wrote:   
   : I was wondering if anyone knew how to backup these disks? I finally was   
   : confident enough in my Model 4's drives (after cleaning and much checking)   
   : to put a couple of original disks into them. I found the Dunzhin game disk   
   : and it worked beautifully, but I can't back it up. I was wondering if   
   : anyone knows how, or is able to do it? I tried the sector by sector   
   : transfer method, but that didn't work. That could be an issue with my   
   : drives, but the info displayed during the transfer didn't look right while   
   : the sectors were being copied.   
      
   Some of the self-starting games and applications (particularly those   
   written for the Model I or III) used a deliberately non-standard disk   
   format, so that the normal operating system backup/copy utilities would   
   not work, or the copy produced wouldn't work.   
      
   One software package (I think it was Super Utility) was so bad that the   
   Tandy factory had to keep some Model I systems around to write the   
   software on the diskettes that would be sold in stores.  The industrial   
   duplication machines could not copy that programs' format either,   
   although the company that came up with that scheme didn't help much.   
   They basically provided Tandy with a program that ran on a Model I (and   
   only a Model I) that would make customer diskettes of that software.   
      
   The copy-protection fad was mostly over by the time the Model 4   
   came out (mainly due to all the customer support issues it caused)   
   but the merchies at Tandy demanded a copy-protection system be added   
   to TRSDOS 6/LS-DOS 6 by Logical Systems.  They reluctantly put one in,   
   but it is very easy to bypass and disable, which was Logical Systems   
   intent.   
      
   Frank Durda IV - send mail to this address and remove the "LOSE":   
       http://nemesis.lonestar.org   
      "I'll huff, and I'll puff, and I'll get promoted."   
      - Old Tandy Management saying.   
   Copyright 2009, ask before reprinting.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)