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#1 |
Registered User
Join Date: Jan 2013
Location: Wild South / Germany
Age: 48
Posts: 272
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Modded PC floppy disk drives
Cheers, folks! I recently started to spend quite some time converting PC floppy disk drives into Amiga drives. I cannot really say why
![]() There is one thing, however, where I haven't really found an answer yet, maybe somebody here knows. It seems to me that in order to test whether a PC floppy disk drive works "properly" like an Amiga drive, only testing for track loader compatibility is not enough. Most people seem to use the Sanity / Arte demo in order check for track loader compatibility. All my converted drives pass this test without any problems ![]() I have found one (original) game, however, that really only works in some drives. This is "Flood" by Bullfrog and it really causes nasty noises when it loads ![]() So for example, I just converted a TEAC FD-235HF 6291-U and it works just fine except when testing Flood. I don't think that it's heads are misaligned, since it loads literally dozens of other floppies without any single issue. And what's more is that disks that I write with this drive can be read without issues in 4 other floppy disk drives ![]() So what could be the culprit here? Tiny controller incompatibilities? Any other idea ![]() |
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#2 |
Registered User
Join Date: Apr 2010
Location: Italy
Posts: 1,136
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i have 20 different floppy for pc modded for amiga and 10 original in my amiga, but i don't have flood for test
i suppose a copy protection in sector 80 or 81 extra trace, you need copy with xcopy with dongle |
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#3 | ||
Registered User
Join Date: Jan 2013
Location: Wild South / Germany
Age: 48
Posts: 272
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#4 |
Registered User
Join Date: Sep 2006
Location: Thunder Bay, Canada
Posts: 4,323
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Flood has very picky track protection and will only work with the "better" of the floppy drives, Samsung and some panasonic drives. Another one is "Magic Lines" that is a real bitch to find a drive that will load it. I actually use Flood to determine just how good a specific drive is once i mod it, if Flood loads then it will pretty well load anything.
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#5 |
Registered User
Join Date: Apr 2014
Location: Stockholm / Sweden
Age: 46
Posts: 27
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I remember Alien Breed not loading on my Amiga 500 original drive while it did load perfectly on my brother's Amiga 2000. When I connected my external drive to my Amiga 500 motherboard, the game booted. And this wasn't even an original disk.
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#6 | |||
Registered User
Join Date: Jan 2013
Location: Wild South / Germany
Age: 48
Posts: 272
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#7 |
Registered User
Join Date: Dec 2010
Location: Stockholm / Sweden
Posts: 64
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Pinball Dreams is another interesting game to try. I don't know if this applies to the cracked version though. I think it was the original that I noticed this with if I don't remember it wrong.
What happened was that while it loaded fine on a Panasonic JU-series drive, it wouldn't load from a modded PC drive, even though these modded PC drives did have the ready signal there as well. These modded PC drives did load every other game I tested it with, although I never tried it with Flood or any other game mentioned in this thread. |
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#8 |
Registered User
Join Date: May 2013
Location: Bratislava / Slovakia
Age: 48
Posts: 241
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Pinball Fantasies cracked by Skid Row. On modded Sony MFP 920, after the cracktro the drive does not start reading. On modded Mitsumi D359T6 it is ok.
But Sanity Arte is working on Sony too. Everything I tested on Mitsumi worked. I does not have original Flood. |
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#9 |
Registered User
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I have 3 differents moded PC drives, will test asap this Flood game and report if it's working or not.
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#10 |
Registered User
Join Date: Feb 2007
Location: Melbourne, Australia
Age: 41
Posts: 3,773
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I'm assuming that its the copy protection in Flood which causes it to not work on many drives? Or is testing a cracked version still useful?
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#11 |
Junior Member
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So far I have only converted one drive which is a Sony MPF920. Stuffed that into an external drive case.
I will eventually do more. I seem to be fixated with repairing and restoring old amiga drives at the moment! Saved 3 so far that had fubared capacitors and then cleaned them inside and out, oiled/greased etc. This Flood issue has me a little worried but then again its one game, hardly ever played it tbh. Last edited by ElectroBlaster; 03 June 2014 at 17:01. |
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#12 |
Registered User
Join Date: Sep 2006
Location: Thunder Bay, Canada
Posts: 4,323
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there is one ADF of flood (can't remember which one off hand) that also refuses to load too (Purple screen after a while) I think it has something to do with the track loader that it doesn't like
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#13 |
Commodore Collector
Join Date: Aug 2001
Location: Austria
Age: 53
Posts: 944
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Probably a mechanical issue, some drives cannot reliable read past track 81, but there might be copy protections that ask for some checks on track 82 or beyond ?!
Also, I can imagine some stepper motors not being fast enough on some drives, resulting in copy protection failures ? |
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#14 | |
Registered User
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Quote:
ALPS ELECTRIC CP., LTD. DF354H(121G) : Working ALPS ELECTRIC CP., LTD. DF354H090F : Not Working ALPS ELECTRIC CP., LTD. DF354H090F (other) : Not Working Real Amiga Floppy Disk Drive (FDDAMI001) Sold by amigakit : Not Working ![]() Last edited by Foul; 04 June 2014 at 21:59. |
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#15 |
Registered User
Join Date: Apr 2010
Location: Italy
Posts: 1,136
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Flood Test : (Flood (1990)(Electronic Arts)[cr Angels][t +3 Angels].adf)
working on chinon fb354 not working on epson smd300, sony mpf 520-1, sony mpf 920 and more |
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#16 |
ex. demoscener "Bigmama"
Join Date: Jun 2012
Location: Fyn / Denmark
Posts: 1,654
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do these mods use a real 'ready' signal, or is that just hooked up directly to sel/mtr?
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#17 |
Registered User
Join Date: May 2013
Location: Bratislava / Slovakia
Age: 48
Posts: 241
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#18 | |
Registered User
Join Date: Apr 2014
Location: Stockholm / Sweden
Age: 46
Posts: 27
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#19 |
PSPUAE DEV
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#20 |
Registered User
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