Hello, I hope you can help me with my problem.
I created a stream file from an AMIGA disk with this command:
dtc -p -f<dumpdir/dumpfile> -i0 -i5 -t500
This seems to work and the raw files were written to the folder.
Then I wrote the stream back to disk with this command:
dtc -f<pathtostreamfiles/firstfile> -w
The writing process seems to work.
BUT the created disk is not working on the AMIGA.
I have to say that the creating and writing of ADFs is working and I also was able to write IPFs back.
It would be great to get some help to solve this issue. Thank you in advance.
Creating and writing streams AMIGA disks
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- Posts: 2
- Joined: Sat Feb 10, 2018 7:49 pm
Re: Creating and writing streams AMIGA disks
Won't work unless the disk is index-aligned. You will need to properly define the data (ADF, IPF) or at least index-align the stream data.
Team KryoFlux
http://www.kryoflux.com
http://www.kryoflux.com
Re: Creating and writing streams AMIGA disks
Actually almost all custom format disks tend to use index synced mastering/writing on Amiga, however games that use AmigaDOS+copy-protection are more likely to be not index synced (except for the copy-protection data).
So it really depends on which game.
So it really depends on which game.
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- Posts: 2
- Joined: Sat Feb 10, 2018 7:49 pm
Re: Creating and writing streams AMIGA disks
Thank you both for your friendly support! I tried to stream a not copy protected disk, but it does not work. So does it mean that for me it is just possible to create a (re-writeable) adf or to create an stream which I have to submit to SPS so that they create a (re-writeable) IPF? The point is that I have a lot of original games from which I want to create backup-copies and expected from Kryoflux to manage this.
Re: Creating and writing streams AMIGA disks
For the record: The KryoFlux is an imaging device, not a copier. This is very clearly communicated. Writing bogus, unknown data is like building a house without plans. You start assuming, guessing, it goes wrong at some point.
If the disk is not copy protected, create an ADF. This can be written. If you have a copy protection track only, and the rest is pure ADOS, try writing an ADF, then just write track 0 side 1 or whatever it is, from a stream file.
If you want an IPF, search the net. If you want to do your own, use e.g. Keir's Disk Tools: https://github.com/keirf/Disk-Utilities
or the Softpres Analyser (atm only available to archives, museums etc.).
And there's still the option to create a script/tool that will index align data based on analysis, e.g. looking for $4489$4489 as sync mark.
Hope this helps.
If the disk is not copy protected, create an ADF. This can be written. If you have a copy protection track only, and the rest is pure ADOS, try writing an ADF, then just write track 0 side 1 or whatever it is, from a stream file.
If you want an IPF, search the net. If you want to do your own, use e.g. Keir's Disk Tools: https://github.com/keirf/Disk-Utilities
or the Softpres Analyser (atm only available to archives, museums etc.).
And there's still the option to create a script/tool that will index align data based on analysis, e.g. looking for $4489$4489 as sync mark.
Hope this helps.
Team KryoFlux
http://www.kryoflux.com
http://www.kryoflux.com
Re: Creating and writing streams AMIGA disks
Alternatively, if you want to use your stream files in emulation, convert them to CT Raw images using DTC. These images work with almost all copy-protected games, however keep in mind that they are just "blind" dump conversions, not something that is fully analysed like IPF.