Drives confirmed working with KryoFlux

All questions about how to use KryoFlux go here.
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IFW
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Re: Drives confirmed working with KryoFlux

Post by IFW » Mon Nov 22, 2010 10:08 pm

That's what I suspected - well done :)

dlfrsilver
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Re: Drives confirmed working with KryoFlux

Post by dlfrsilver » Wed Nov 24, 2010 11:41 pm

Turrican 2 original disk is using 42 tracks :) missing the last track, and the game will stop loading ;)

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IFW
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Re: Drives confirmed working with KryoFlux

Post by IFW » Thu Nov 25, 2010 11:27 am

Speaking of which... how about dumping some CPC and Spectrum+3 games? ;)

gizmomelb
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Re: Drives confirmed working with KryoFlux

Post by gizmomelb » Sat Dec 04, 2010 8:51 am

3.5" drives tested:

Samsung SFD-321B revision T1 maxtrack=83
Teac FD-235HG revision A02 maxtrack=81

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Malvineous
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Re: Drives confirmed working with KryoFlux

Post by Malvineous » Sun Dec 05, 2010 4:16 am

Just FYI the Samsung SFD-321/SFD-321B actually can do maxtrack=85 if the software limit in dtc is removed.

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mr.vince
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Drives confirmed working with KryoFlux

Post by mr.vince » Sun Dec 05, 2010 8:47 am

Malvineous wrote:Just FYI the Samsung SFD-321/SFD-321B actually can do maxtrack=85 if the software limit in dtc is removed.
I am not bothered and we'll list it with 84 tracks as usual.

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Malvineous
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Re: Drives confirmed working with KryoFlux

Post by Malvineous » Mon Dec 06, 2010 1:25 am

I'm curious - you're really keen to get drives that do maxtrack=83 to preserve everything on the disk even though most disks are only 80 tracks, and you're keen to get drives that do negative tracks even though most disks don't use them, but you're not at all interested in reading tracks 84+ just to see if there might be any information there? I would've thought you'd want to read absolutely everything you can, just in case!

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mr.vince
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Drives confirmed working with KryoFlux

Post by mr.vince » Mon Dec 06, 2010 12:45 pm

The other things you are referring to are a reality. Accessing data stored beyond track 83 is a fantasy since the standard was 80 tracks, so the max companies could use was 81 or 82.

István knows better...

We can clearly separate data from noise and most disks have traceback info on maxtrack + 1, that's it.

Defaulting to 85 for one drive so far and risking to damage others is not a+ priority for me...

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Malvineous
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Re: Drives confirmed working with KryoFlux

Post by Malvineous » Tue Dec 07, 2010 7:04 am

Actually two drives - one is 84, one is 85. Fair enough, but I still think the likelihood of damage is minimal. The way dtc works it probes the tracks one by one, so you'll only ever check the drive's maxtrack+1 and when that doesn't work the probe stops. So really probing for maxtrack=83 on a drive that only supports maxtrack=81 is no different to probing for maxtrack=999 on a drive that supports maxtrack=83. As soon as the drive fails to reach the target track dtc stops.

At any rate, once Linux support is done I'll definitely be returning to bug you about this ;-)

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mr.vince
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Re: Drives confirmed working with KryoFlux

Post by mr.vince » Tue Dec 07, 2010 10:15 am

Don't think people would only use it for testing; they'd start dumping uo to the highest cylinder possible. And that means DTC does not check one step more at a time - it will continue pushing the head.

All this will do is generate demand for drives that can access ridiculously high cylinders; it will not improve quality of dumps or help dump rare titles as none of these did use such cylinders because it could not be guaranteed they would be available on a typical consumer machine.

I agree, the Linux and Mac ports are really important things. Extremely high cylinders are not.

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