Yes, but these compromises are needed for 1 disk of 100, while 99 of 100 do 
work with DSK. So if somebody sends us his new ETracker tune in EDSK format I 
ask myself: “Is this really what we needed?”

Btw. I haven’t seen SAMdisk utility before. It looks nice. I slept many years 
or something.  Please can you tell me the format of TRD (Beta128 TRDOS images)? 
Is it the same as DSK? Or is it like SAD without header? I read the 
documentation you link from your website, so I know the internal data format, 
but I can’t see the actual TRD file format described there. Thanks in advance.

Aley

From: Simon Owen 
Sent: Friday, April 20, 2012 10:40 PM
To: sam-users@nvg.ntnu.no 
Subject: Re: Musics

Aley, 

I'd started to type a longer reply to this, but I just can't be bothered 
anymore.  It's clear we have very different approaches to pretty much 
everything.  I'm just not willing to make the same compromises as you when it 
comes to preserving media.  If it doesn't work without modifying it, you need a 
better quality copy.

Si


On 20 Apr 2012, at 20:07, Aleš Keprt wrote:


  You know my disk extractor and other utilitie are dated 199x.

  And I don’t like this. I think 95% or even more of disks overall don’t need 
any special disk formats, and there are many software utilities which support 
simple DSK/MGT/SAD because those programs are much older than 2005. It isn’t a 
clever idea to design a whole new file format 15 years after Sam Coupe was born 
and use it for all disks even when it is not needed for most of them. Also 
those two SDF files can be downloaded from some websites, but I haven’t seen 
any protected EDSK files anywhere, so I would prefer sticking with the same 
formats. “Don’t change what works.” Also this is the first time I have seen 
EDSK file on my own eyes, and I wonder why it has DSK extension when it is not 
a real old good DSK file. I looked at the file in heax view and I can see 
Amstrad CPC header in it. Note that I created my SAD format only because it was 
years before DSK format was known to me, and also I have several 840KB disks 
which are a bit problematic in DSK especially in some software which 
automatically expect 800KB DSK only. But otherwise DSK is enough for most of 
disks.

  I think it would be OK if we had this file format around 1995 when there was 
a real big need to backup our disks, but not in 2005 when 99% of disks are 
converted and possibly cracked to be converted without any special file formats.

  Aley

  From: Simon Owen 
  Sent: Friday, April 20, 2012 7:36 PM
  To: sam-users@nvg.ntnu.no 
  Subject: Re: Musics

  On 20 Apr 2012, at 17:25, Aleš Keprt wrote:
    I’d like to know why do you use Amstrad CPC file format, instead of a 
standard Sam Coupe one (DSK/MGT or SAD).

  EDSK has been an adopted format in the SAM scene at least as far back as 
2005.  It's the only way to preserve some disks in their original format, 
allowing for unformatted tracks, disk errors and other custom-formatting 
tricks.  EDSK seemed like a reasonable solution at the time, without inventing 
yet another disk image file format.

  Before that was finalised I did still create SDF as a temporary solution.  
Only two public disk images ever existed (Lemmings and Prince of Persia), and I 
don't think the creation tool was every released.  All support for SDF was 
dropped from SimCoupe a few months back, so it's effectively dead.


    I think we should stick to standard file formats whenever possible to let 
all those old file utilities work.

  For legacy use you could convert to MGT:   SAMdisk sanxion.dsk sanxion.mgt

  Si 

  -----------------------------------------
  Mgr. Aleš Keprt, Ph.D.
  private: a...@keprt.cz, www.keprt.cz
  office: Moravian College / Moravská vysoká škola Olomouc, ales.ke...@mvso.cz


-----------------------------------------
Mgr. Aleš Keprt, Ph.D.
private: a...@keprt.cz, www.keprt.cz
office: Moravian College / Moravská vysoká škola Olomouc, ales.ke...@mvso.cz

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