Amstrad 3" disks

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Interceptor
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Joined: Wed Oct 06, 2010 10:17 am

Re: Amstrad 3" disks

Post by Interceptor » Sat Nov 20, 2010 10:59 pm

If using my script it will retry any bad mfm 5 times.

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IFW
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Re: Amstrad 3" disks

Post by IFW » Sat Nov 20, 2010 11:04 pm

just set it to say 50, maybe hard to read.

r09
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Re: Amstrad 3" disks

Post by r09 » Sun Nov 21, 2010 12:21 pm

No luck with Wizball, I just did 1000 retries and I always get the same:

00.0 : frev: 38179, drift: 0.058 us, tfer: 180142 B/s, rpm: 295.320
00.0 : base: 1.993 us [99.442%], band: 3.981 us, 5.978 us, 7.941 us?
00.0 : base: 1.993 us [99.442%], band: 3.981 us, 5.978 us, 7.941 us?
00.0 : MFM: <error>, trk: 000, sec: 9, bad: 9
00.0 : Bad sector found

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IFW
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Re: Amstrad 3" disks

Post by IFW » Sun Nov 21, 2010 12:52 pm

Fair enough, then it's just like that... will take a look later.
Indy seems to be an emulation specific issue, we are investigating.

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mr.vince
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Re: Amstrad 3" disks

Post by mr.vince » Sun Nov 21, 2010 7:23 pm

Btw please check this firmware (last post) for 3" CPC dumping!

viewtopic.php?f=3&t=29#p282

EDIT: Please especially test if it solves the problem with TRK00 detection (misalignment, bad dumps) we have been observing.

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IFW
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Re: Amstrad 3" disks

Post by IFW » Sun Nov 21, 2010 9:48 pm

Indy IPF is working with HxC so it's an emulator software problem; will be fixed eventually.

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IFW
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Re: Amstrad 3" disks

Post by IFW » Sun Nov 21, 2010 11:22 pm

Wizball track 0 is bad, but it runs under emulation without any problems... still it's definitely a bad track and not how it should be for real.
Do you have another copy of the game?
Is there a tool on CPC that you could try and see if all the blocks are reported error free on track 0 or not?

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Interceptor
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Re: Amstrad 3" disks

Post by Interceptor » Mon Nov 22, 2010 12:18 pm

IFW wrote:Indy IPF is working with HxC so it's an emulator software problem; will be fixed eventually.
its already been fixed, new download is up on the site.

http://sites.google.com/site/caprice32emulator

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mr.vince
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Re: Amstrad 3" disks

Post by mr.vince » Mon Nov 22, 2010 2:26 pm

Awesomeness!

r09
Posts: 28
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Re: Amstrad 3" disks

Post by r09 » Mon Nov 22, 2010 2:45 pm

Well, there's definitely something wrong going on with that Wizball disk. I tried to read it on the CPC side with Discology. Sometimes it reads just a couple of sectors, sometimes it returns to the menu and sometimes it just locks up. Discology was always very good at reading protected disks, and as far as I know it could handle Speedlock disks without any problems, so I think the first track is definitely bad.

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