[Coco] Re: [Color Computer] Copy protection

sadolph sadolph at magma.ca
Thu Jun 3 00:25:59 EDT 2004


There is a resistor network that needs to be uninstalled, on the b drive I believe.

Also, you have to jumper the drive to be drive b.  there are usually markings that identify which jumper it needs to be.

If you keep having trouble, look here

www.istop.com/~sadolph
 and download dvi_sm.pdf

That has technical information on the floppy in the FD-501.  check that out for the detail.

I can only tell you that I got mine to work with no real problems.  Good luck.

Steve

  ----- Original Message ----- 
  From: Charlie 
  To: ColorComputer at yahoogroups.com 
  Sent: Wednesday, June 02, 2004 1:17 PM
  Subject: Re: [Color Computer] Copy protection


  I could NOT get the FD-501 drive to work as drive B on any of 3 
  different PCs last night.

  1st of all, as it was with a 1.44 floppy on the ribbon cable both 
  drives acted as A at the same time.

  I cut the line that said DS0 and the FD-501 drive seemed to be acting 
  as B just fine however, the A drive was working but would not read 
  any disk. The system would try to boot from A but just get a not 
  readable error insert system disk or something.

  Tonight I'm going to solder back the the DS0 line and take one of the 
  old PCs and throw a bootable DOS hdd in it and hook up the FD-501 
  drive as a single drive A and see what happens.

  Any tips on getting this 180K fd-501 disk to work on a PC?

  -Charlie


  --- In ColorComputer at yahoogroups.com, "sadolph" <sadolph at m...> wrote:
  > 
  > What I've found recently is that Anadisk reads the old coco 
  formatted disks fine, but 
  > when it comes to writing the old format on a new disk, there is a 
  dependance on the 
  > actual floppy drive.
  > 
  > When I've tried to replicate disks using an IBM 360K drive, I had 
  problems every time.  
  > the disks were unusable, and when examined in detail, the final 
  sector in the cylinder 
  > was corrupted.
  > 
  > I've since mounted an actual Tandy 180K floppy drive in my PC to 
  overcome this.  I use a 
  > drive that shipped with my coco FD-501.  That seems to work 
  correctly and so far, every 
  > time.
  > 
  > Steve
  > 
  > 
  > 
  > On Jun 1 , "Neil Morrison" <neilsmorr at h...> wrote:
  > > 
  > > <html><body>
  > > 
  > > 
  > > <tt>
  > > <BR>
  > > You'd need to run a careful analysis of the master floppy first 
  and probably<BR>
  > > do a special format. The generic 'copy' probably isn't smart 
  enough to fix<BR>
  > > things. Even then the guy MAY have a cunning protection scheme. 
  Some used<BR>
  > > two sectors on a track with the same numbers. Others buried stuff 
  between<BR>
  > > the sectors. You need to find out what the trick was in order to 
  make the<BR>
  > > copy.<BR>
  > > <BR>
  > > Neil<BR>
  > > <BR>
  > > ----- Original Message ----- <BR>
  > > From: "Charlie" chazbeenhad at h...<BR>
  > > <BR>
  > > > Anadisk 2.07 doesnt seem to work right.... V2.06 did copy 
  Sundog<BR>
  > > > games, but when trying to load them on the COCO3 I would get 
  IO<BR>
  > > > errors. I can do a DIR and see the files, but when I try to 
  load the<BR>
  > > > game it either gets stuck (white fire of eternity) or gives 
  an IO<BR>
  > > > error (Sinistar).<BR>
  > > ><BR>
  > > > Still no way to copy these old disks :-(<BR>
  > > ><BR>
  > > > -Charlie<BR>
  > > <BR>
  > > </tt>
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