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Old 23 March 2007, 18:53   #1
Dr. Dude
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How to un ndos a disk

I have been fighting whit a ndos disk , i just are not able to read any file from it.
Is there any cool prog to, unNDos or uncompres a disk?
There must be a way
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Old 23 March 2007, 19:14   #2
Marcuz
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install a dos bootblock? it may not wok on everythingh, tough: i know i have ruined some disk this way in the past, but for instance, Killergorilla has fixed 2 NDOS disks from Elvira 2 ita version by installing the bootblocks from the DOS english versions of them.
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Old 23 March 2007, 19:38   #3
Mad-Matt
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if it was once a dos disk, you maybe be able to use file recovery tool such as disksalve.
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Old 23 March 2007, 20:20   #4
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nope, no chance
as there are only ndos versions of the game

Never been a dos disk
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Old 23 March 2007, 20:35   #5
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If it was never a DOS disk in the first place, you will never be able to pull files off it then! Crackers and WHDLoad patchers analyse the disk to work out if there is an internal file structure on the disk and sometimes break the image into pieces but it requires a lot of assembly knowledge.

Why not tell us what this disk is and why you want to break it into files?
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Old 23 March 2007, 21:17   #6
mailman
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Quote:
Originally Posted by Dr. Dude
I have been fighting whit a ndos disk , i just are not able to read any file from it.
Is there any cool prog to, unNDos or uncompres a disk?
There must be a way
There is a tool written by Mr. Larmer (R.I.P.) which can extract files from NDOS disks. Obviously there are many restrictions in that. Eg. one of them is that the "files" need to be packed with some packer supported by XFD, so it might have recognisable header. The tool is called Track2File.

Sometimes you may give it a try and load NDOS disk file image into the text editor and if you are lucky and game uses standard Amiga IFF files, try to rip them by hand using copy/cut/paste.
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Old 23 March 2007, 22:29   #7
Dr. Dude
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The game that needs to be taken apart is Deuteros
This is needed for the Deuteros PC project... what has been running for... well a long time
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Old 23 March 2007, 22:40   #8
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@MailMan : Track2File is an excellent tool. It can even find PP20 data file lenght correctly !
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Old 23 March 2007, 22:51   #9
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I remember to have written a tool like Track2File, called riperator : it could recognize many formats (ilbm,crm,pp20,stc,rnc,modules mod,med,okta,fc,startracker,) and decrunch packed files or play modules before save.
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Old 23 March 2007, 22:52   #10
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But you need to be careful as well. Sometimes it can find some dummy file headers (which are not real files). It can cause crash or suspend of the machine. My advise is to use this tool wisely, for e.g. do not force it to unpack any files. Unpacking can be done after ripping and with some AmigaOS knowledge you can easily figure out which files are dummy and can not be unpacked and which one are real and can be unpacked.
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Old 10 April 2007, 20:03   #11
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Try amigamon

HMMM... FIRST OF ALL SORRY FOR MY BAD ENGLISH .......I AM AN ITALIAN GUYS ........
THIS IS MY TECNIQUE TO READ AMIGA NDOS DISK .....
LOAD AN AMIGA MONITOR LIKE AMIGAMON MEGAMON OR WHAT YOU HAVE
INSERT THE DISK ... AND READ THE TRACK 00 FROM 79 AT START MEMORY ADDRESS $30000 IF YOU HAVE AN AMIGA WHIT 1MEGS CHIP RAM OFCOURSE IF YOU HAVE A ALF MEG CHIP MEMORY READ TRACK FROM 00 TO 30
OK NOW LOAD MULTI RIPPER AND HUNT FOR DECRUNCH HEADER IN THE SELECTED RANGE OF MEMORY AND HAVE FUN ...........
I REMEMBER THIS TRICK FOR CHANGE THE INTRO OF THE CRACKER AND REPLACE
WITH MY INTRO AND REMEMBER AN HUNK IN ASCI CODES '' NUsabb'' that word indicates the header of paker byte killer ........
second tecnique is to disassemble the boot blok or bb simply read the trak 00 00 to $30000 and search for 3 master adress and divide the valour for 2c00
2coo is the offset of a standard amiga trak not mfm track
sorry i forgot all the rest i used the amiga 15 years ago
and code an intro named cyberpunk with the help of amiga assembler course from fabio ciucci ''aka'' RANDY OF RAMJAM thats all .......
if i have a flash back in my shit memory write the rest
sorry again ........


 
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