16 November 2018, 16:47 | #1 |
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Join Date: Sep 2012
Location: Copenhagen / DK
Age: 44
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Help with checking content of raw dump
I am in the process of dumping some disks and came across some that doesn't seen to contain much as far as I can see. The three disks are supposedly containing the Hugo game, but they are not originals so I would expect them to just be plain DOS disks. However, I can only identify content on disk 1 track 0.0. The rest are neither AmigaDOS or MFM tracks. Kaffer's disk-analyse does not recognize them either so do they actually contain anything?
Booting off disk 1 in a real Amiga causes it to read a few tracks and then stop at a black screen, however this is in an accelerated Amiga so it is not a proper test but I do not have a plain Amiga around right now to test it with. I have put the raw files here and was hoping someone else could check them out and verify whether they are indeed empty: https://rushfiles.one/client/publicl...?id=g4JRGmcrF4 It just seems odd to me that one track on disk 1 is AmigaDOS and the rest are unidentified as if it was a protected original.. Edit: And checking the boot block, it does seem to have contained something from Hugo since there is a string there with 'Er du gal, hvor jeg hader crackere - hilsen Hugo', so it does seem to fit the label. |
08 November 2019, 10:55 | #2 |
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Join Date: Apr 2018
Location: Mikkeli / Finland
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Almost a year has gone by so...
You don't have any idea what was used to copy those disks? They are in a custom format so they're clearly made from original disks. Trying to load the raw data in WinUAE shows it tries repeatedly to read track 2 so there's clearly some kind of a error on on that track atleast. Having better knowledge on the situation requires disassembling the loader code so the tracks could be tested. |
08 November 2019, 11:51 | #3 |
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Age: 44
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I have no idea what was used, however I had since come across another copy (from a different source) of the same game which dumped quite similar, i.e. track 0 as DOS and the rest unknown, so perhaps it was 'common knowledge' among some people back then how they could copy this game.
My best guess would be perhaps X-Copy Nibblecopy / Cyclone or PowerCopy? Which other tools were common back then? |
08 November 2019, 13:08 | #4 |
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Join Date: Mar 2002
Location: Bonn / Germany
Posts: 88
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You may try examining the WHDLoad slave sourcecode for this game.
http://www.whdload.de/games/SkaermtroldenHugo.html Apparently this game uses a custom format with three different MFM syncwords: _sync3=$8912 _sync2=$8944 _sync1=$4489 |
09 November 2019, 13:34 | #5 |
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Join Date: Aug 2018
Location: Mansfield
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I know someone had some disks where track 0 was dos and the rest not readable.
I think they was action replay 1.5? disks... I think they only way they got ripped was to use Amiga and the Amiga version of kryoflux software to create a CTRAW image. We could them drag n drop the RAW file into Amiga Forever and it booted up fine. |
09 November 2019, 16:19 | #6 |
Amigaholic
Join Date: Dec 2009
Location: UK
Posts: 4,759
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Seems that dump is bad or the copy it was created from! I created a CT RAW from the streams of Disk 1 but it won't boot past track 2 and the WHDLoad installer sticks at the same track, in fact if you ignore the error there are problems with other tracks so it's a bad dump or copy!
Seems to be Skærmtrolden Hugo as it's on 3 disks and SPS has no IPF listed for it! Last edited by BarryB; 09 November 2019 at 16:25. |
09 November 2019, 18:37 | #7 |
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Join Date: Apr 2018
Location: Mikkeli / Finland
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After a bit of headscratching, try this.
Edit: New files, should be completely error free and fully working now. Last edited by Zer0-X; 10 November 2019 at 21:46. Reason: Files replaced. |
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