DMK Creator 1.0

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By OeiOeiVogeltje

Paragon (1406)

OeiOeiVogeltje's picture

18-04-2017, 00:10

warez!!!

By Manuel

Ascended (18734)

Manuel's picture

18-04-2017, 21:40

cbsfox wrote:

Cool. Thanks. I can try to use a compression routine in the future. Why not?
But I don't think it is a good idea because it would take several minutes to compress a 1 megabyte file.

No, it's not that bad. XelaSoft's D2F also didn't take that much time to compress. Remember: it doesn't have to be a very good compression. Just getting the file small enough to get at below 712kB is fine.

Quote:

And there is another pain in the ass that would be the uncompression of the file.

That part is the easiest: it can be done on a PC, as DMK files are only useful on PC's (so far).

Quote:

Actually I like the idea just to use a mass storage device as the target.
Here in Brazil IDE cartridges or some other mass storage devices are pretty common and cheap. I have 4 ones.
But as you are using the emulator to test the tool, press "F" to enable Sony Fast Mode. Test if it works.

Why would that work on a Philips NMS 8250-based MSX2? What does this mode do anyway?

By cbsfox

Champion (387)

cbsfox's picture

19-04-2017, 06:45

I think its going to take too much to compress the file to fit in a single disk. But we can try this in a future. But I dont like the idea.

I said to try the Sony Fast Mode in OpenMSX. There it works with all machines. In a real machine, obviously you need a real sony computer to use this special mode. At least it works perfectly in my Sony XDJ.
This mode is incredible good because we can use just the Read Track Command to read all the data perfectly. The internal FDC works great with all my disks. The Philips internal FDC does not work OK in this special mode. Its necessary to use the Read Sector command together with the Read Track Command.

By Manuel

Ascended (18734)

Manuel's picture

19-04-2017, 07:43

Which FDC's are used in both machines?

By cbsfox

Champion (387)

cbsfox's picture

19-04-2017, 08:10

Both use the same FDC from Western Digital, with WD2793 chipset. But the quality of the components are better in Sony. The only possible explanation.

By Pac

Scribe (6652)

Pac's picture

23-04-2017, 17:52

For those who don't know the details, what is the main difference between DMK and DSK image files? I know they are similar but according what I read, it seems DMK is a perfect copy of disks keeping even the copy protections, so it should be used to make a perfect back-ups. Is that right?

By cbsfox

Champion (387)

cbsfox's picture

23-04-2017, 19:19

That is right. DMK format is a type of image that includes all track protections.

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Version 2.0 is out:

Download link: https://1drv.ms/u/s!AlpEtfGjLbhmkxH3CpSiu7V6nEw9

What is new:

1 - Now it split the DMK file in 2 disks for people who don't have mass storage devices.
2 - Support for different European copy Protections including the hard ones from Sunrise. And yes, Wrapped Sectors and Identical Sectors are supported as well.
3 - New core engine to detect track's sectors correctly.
4 - Not necessary any more to boot pressing CONTROL key.
5 - Works correctly will DOS1, DOS2 and Nextor.

Try it out. Enjoy!

Ps: Let me know about the results people.

Regards
Marcos Daniel Blanco de Oliveira

By Pac

Scribe (6652)

Pac's picture

23-04-2017, 20:15

Thank you. Then, the DSK file images are basically the same but skipping those sectors, is that correct?

By cbsfox

Champion (387)

cbsfox's picture

23-04-2017, 20:39

Actually DSK images contain just the data from the disks.
Nothing else. No information about the tracks such as sector numbers, headers, gaps, etc, etc

By Manuel

Ascended (18734)

Manuel's picture

23-04-2017, 21:19

PAC: it depends on how these DSK images were created and what kind of copy protection is used.

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