Search found 2261 matches

by DrCoolZic
Wed May 13, 2020 7:04 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

as_13.PNG
Aufit can recover some sectors (pretty amazing looking at the condition) but not all of them

Actually Aufit seems to have recovered all of 55.0 56.0 56.0 and 48.0 49.1
by DrCoolZic
Tue May 12, 2020 2:42 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

In Aufit I provide the capability to pick a good sectors from the different revolutions if they exist and combine them to recover the data... For example on a track Aufit can pick sector one in revolution 1 and sector 2 in rev 4 etc. When this happen that usually mean that your disk is very close to...
by DrCoolZic
Mon Jan 27, 2020 5:26 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

So it would not check duplicate sector on track 0 (or did you made the test using AS V1.2 that does not have duplicate?)
I suspect that "Read sector(s). track: 3 (80), side: 0, sector: 10" means read sector 10 on track 3 with track register set to 80 (decimal)
by DrCoolZic
Mon Jan 27, 2020 9:01 am
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

Spiny I have looked at the image you provided (1.2). It is similar but different from previously posted image (1.3). Track 1, 2, 3 look the same with same protections. But track 0 + tracks 4-58 are different: - On version 1.3: we find a duplicated sector id (sect 66) with no data as-1.3-t0.PNG - On ...
by DrCoolZic
Sun Jan 26, 2020 10:39 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

Yes please
How do you know protections are similar?
I think I did an inteligent stx file comparator (used to check Aufit stx output)
by DrCoolZic
Sun Jan 26, 2020 9:18 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

No it is not necessary. Cant check now will do it tomorow thanks
by DrCoolZic
Sun Jan 26, 2020 9:05 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

If you are not sure about how to do it read page 23 of Atari Copy Protection Based on Key Disk http://info-coach.fr/atari/documents/_m ... ection.pdf
by DrCoolZic
Sun Jan 26, 2020 8:56 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

You provided .st file which are of no use :(
by DrCoolZic
Sun Jan 26, 2020 8:54 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

What you show on kf imager looks good
Can you provide raw and ctr images please even if not running on atari
by DrCoolZic
Sun Jan 26, 2020 8:06 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

Yes you are right the minimum distance is 32 bytes (usually 24 x $4E + 8 x $00) but here we only have 13 bytes (2 x $4E + 11 x $00) Te minimum gap II size at MFM is 28, not 32. Where did you get this number from? If I am right the 32 bytes comes from the WD1772 datasheet. But to be honest the table...
by DrCoolZic
Sun Jan 26, 2020 8:02 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

Yes please can you create KF images of the disks. Having different images of the same program is always interesting but with this one it is even more important. Please do not forget to indicate the version of the program.
by DrCoolZic
Sat Jan 25, 2020 3:37 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

I will be adding a description of the Audio Sculpture protection in my next release of ‘Atari Copy Protection’ document as it introduce two new protection mechanisms that I had not seen before. These new protections are located on track 3 and I call them: “Write splice inside sector” and “ID within ...
by DrCoolZic
Sat Jan 25, 2020 3:28 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

dlfrsilver: is the only software that can't be dumped/duplicated with Kryoflux or is there other games/tools like this one? It seems to be the first of its kind i know of. But, i know also that if the disk protection was exactly described in the IPF generator, a working original could possibly be m...
by DrCoolZic
Thu Jan 23, 2020 4:57 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

For the protections present on track three, I need to improve Aufit, because this track used a very smart mechanism that I have never seen before: Each sector contains two ID_field in front of the Data_field! We have exactly 30 bytes (post_id_gap=7 + id_field = 6 + post_id_gap=17) from the end of t...
by DrCoolZic
Thu Jan 23, 2020 4:03 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

@dlfrsilver : I have setup my system to use CTA and guess what it does not seems to like this image! It complains on almost all tracks! Actually if the FD has been written on an Atari this could make sense. CTA using some magic finds that the tracks have been tempered, which make sense, as probably ...
by DrCoolZic
Thu Jan 23, 2020 1:50 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

Thanks Ijor. It looks like at least I am moving in the right direction… I did not consider the possibility of multiple write splice (what I refer as ‘track write splice’) as the result of using duplicators with fix (and probably slightly shorter) track length. As described in my document I am also t...
by DrCoolZic
Wed Jan 22, 2020 3:35 pm
Forum: Applications
Topic: Req : "Audio Sculpture" (STX,...) even not running...
Replies: 240
Views: 49925

Re: Req : "Audio Sculpture" (STX,...) even not running...

Being away for some times, I just discovered this old but very interesting thread! I briefly looked at the image under Aufit and found lots of interesting info / problems that I need to eventually address. But most of my problems are related to write splice detection ... So if Ijor is still looking ...
by DrCoolZic
Wed Jan 22, 2020 3:04 pm
Forum: Floppy Disk Preservation
Topic: Atari ST Protection Techniques Special Edition
Replies: 38
Views: 12113

Re: Atari ST Protection Techniques Special Edition

I just read the Audio Sculpture thread. Very very interesting. I have not worked/looked at Atari stuff for quite some times and I missed this thread. Yes this protection needs to be analyzed further. I have used Aufit (in progress version) to look at the protection and Aufit seems to be confused in ...
by DrCoolZic
Tue Jan 21, 2020 10:05 pm
Forum: Floppy Disk Preservation
Topic: Atari ST Protection Techniques Special Edition
Replies: 38
Views: 12113

Re: Atari ST Protection Techniques Special Edition

You are right the decoding of synch mark is very complex and need to be better documented. Originally Aufit was not decoding some sync configuration correctly. Details of the wd shifter can be found in the sps decoder library source code ...
by DrCoolZic
Tue Jan 21, 2020 7:53 pm
Forum: Floppy Disk Preservation
Topic: Atari ST Protection Techniques Special Edition
Replies: 38
Views: 12113

Re: Atari ST Protection Techniques Special Edition

TomH wrote:I assume you'd have no problem with someone uploading the PDF to archive.org?
I have created a clean and searchable version of the documentation.
You may want to use this version for archive.org ?

Can be accessed here https://mega.nz/#!Fh4mSawA!bcf8Puwskuii ... WMjQyX6Sag

Jean
by DrCoolZic
Tue Jan 21, 2020 4:33 pm
Forum: Floppy Disk Preservation
Topic: Atari ST Protection Techniques Special Edition
Replies: 38
Views: 12113

Re: Atari ST Protection Techniques Special Edition

Thanks. I am particularly interested by the manual. I might find interesting information for my document @ http://www.atari-forum.com/viewtopic.php?f=104&t=21952
by DrCoolZic
Sun Dec 08, 2019 6:24 pm
Forum: Games - General
Topic: Dragonflight
Replies: 55
Views: 20277

Re: Dragonflight

yes should be

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