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Re: STX file format ?

Posted: 17 Jul 2026 13:26
by exxos
Thanks, I grabbed a couple files. my searches just came up 20+ broken links and I gave up.

I may have a test tool done for public use later today. The STX extraction works, as already proven . ST MSA should be simple, ill look into other formats as well.

Re: STX file format ?

Posted: 17 Jul 2026 13:49
by alexh
IPF has a windows DLL plugin intended for use in emulators. You should be able to use it if you wanted to add support for IPF to dump the contents of DOS formatted disks.

https://www.softpres.org/download

Re: STX file format ?

Posted: 17 Jul 2026 13:50
by exxos
alexh wrote: 17 Jul 2026 13:49 IPF has a windows DLL plugin intended for use in emulators. You should be able to use it if you wanted to add support for IPF to dump the contents of DOS formatted disks.
Id assume that wouldn't work on a Linux box though ?

Re: STX file format ?

Posted: 17 Jul 2026 13:56
by alexh
exxos wrote: 17 Jul 2026 13:50 Id assume that wouldn't work on a Linux box though ?
There is a linux equivalent for various CPU architectures.

Re: STX file format ?

Posted: 17 Jul 2026 15:21
by exxos
First test run.

https://www.exxosforum.co.uk/img2files/img2files.php

I only tested a few files with IPX, MSA, ST, it extracts the image to files, but i've not checked if files extracted correctly or tried to run anything.

Report any bugs and I will look into them likely next week. Will need a copy of the image you are trying to extract if something fails. I can't be bothered to go looking for SCP HFE either.

Re: STX file format ?

Posted: 17 Jul 2026 16:50
by alexh
What does it do if the disks are non DOS? As most .STX/IPF are

Re: STX file format ?

Posted: 17 Jul 2026 17:01
by exxos
alexh wrote: 17 Jul 2026 16:50 What does it do if the disks are non DOS? As most .STX/IPF are
Assume it wouldn't matter. But all needs testing out. I don't know anything past MSA and ST . Those I understand :P

Re: STX file format ?

Posted: 17 Jul 2026 19:49
by ijor
I designed STX many years ago. The public variant was mostly meant for emulators. There was a different variant, based on dumps made with the Discovery Cartridge, that was much more suitable for writing back.

For the purpose of extracting sector data, and files, it is just fine. If you are missing any details, let me know.

Re: STX file format ?

Posted: 17 Jul 2026 19:50
by ijor
kodak80 wrote: 17 Jul 2026 12:50 I was helping with this floppy disk preservation work. IPF format is the format if you want to write back and have confirmed that you flux dumps are good. IPF is a format from Software Preservation Society (SPS) and was very controlled until things kicked off on the Atari-Forum with the help of @Dlfrsilver .

Get a Kryoflux (KF), Supercard Pro (SCP) or Greaseweazle and preserve old disks. It's been a work-in-progress on https://atari-forum.com/viewtopic.php?t=28228 for a while with IPF provided for good clean, original flux dumps.
I said this several times. There seems to be a misconception that a file format itself can provide certainty for complete, non damaged and not modified original dumps. This is not true. You can get a "bad" dump, even a non working one, on any file format. And you can get a perfectly clean original dump on any other format as well.

What makes a specific dump more certain than others, is how it was verified, not the file format. Originally, each IPF files was individually reviewed and verified by the main CAPS/Softpres developer. Not anymore. Now an IPF file doesn't guarantee anything in itself. As a matter of fact, since Dennis started using all sort of techniques and shortcuts, there are several IPF files on the mentioned repository marked as verified, that they are really not and are actually modified. That's a real pity.

Re: STX file format ?

Posted: 25 Jul 2026 16:26
by Dlfrsilver
ijor wrote: 17 Jul 2026 19:50
kodak80 wrote: 17 Jul 2026 12:50 I was helping with this floppy disk preservation work. IPF format is the format if you want to write back and have confirmed that you flux dumps are good. IPF is a format from Software Preservation Society (SPS) and was very controlled until things kicked off on the Atari-Forum with the help of @Dlfrsilver .

Get a Kryoflux (KF), Supercard Pro (SCP) or Greaseweazle and preserve old disks. It's been a work-in-progress on https://atari-forum.com/viewtopic.php?t=28228 for a while with IPF provided for good clean, original flux dumps.
I said this several times. There seems to be a misconception that a file format itself can provide certainty for complete, non damaged and not modified original dumps. This is not true. You can get a "bad" dump, even a non working one, on any file format. And you can get a perfectly clean original dump on any other format as well.

What makes a specific dump more certain than others, is how it was verified, not the file format. Originally, each IPF files was individually reviewed and verified by the main CAPS/Softpres developer. Not anymore. Now an IPF file doesn't guarantee anything in itself. As a matter of fact, since Dennis started using all sort of techniques and shortcuts, there are several IPF files on the mentioned repository marked as verified, that they are really not and are actually modified. That's a real pity.
Those are serious allegations. If you claim that several IPFs are modified, please identify them individually and explain exactly what was modified, why it is incorrect, and what the original data should have been. General statements are not sufficient. Technical claims require technical evidence.

In other words, if you claim that a dump has been modified, the burden of proof is on you, not me !