19 February 2017, 03:40 | #21 | |
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19 February 2017, 11:14 | #22 |
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Isn't that problem relatively easy to solve though? I understand that not everyone who has original floppies will want to buy a Kryoflux, but if preservation was a conscious effort in the community, it's quite easy to transport floppy disks to someone who can dump them. Compared what the MAME community does for preservation (ship arcade boards around the globe, send chips to professional decapping plants, etc), it's sooo much easier and cheaper to dump Amiga software.
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19 February 2017, 12:33 | #23 | |
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About the kryoflux board, it's clear that you need to have one in order to dump. a stream dump can only be done with a kryoflux board. This means that if a collector has a lot of software, he must buy a board to dump his disks, there's no other options..... |
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19 February 2017, 13:00 | #24 | |
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19 February 2017, 13:15 | #25 |
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I've dumped Nitro and Battle Squadron in NTSC
You don't actually need a KF board if you still have an 020 or higher Amiga, the KF Free dumping tool can still be used on those machines to dump your original 3.5" disks, whether they are Amiga, Atari ST, IBM or Mac but NOT HD Disks, no idea if an Amiga HD drive can be used for HD Disks as I don't have one! The caveat is you need somewhere to store the dump (HDD/CF CARD/USB) and some means of uploading it to SPS either on an internet connected Amiga or transferring to another machine with internet connection! SPS have also said that a forthcoming update to DTC will allow user generated IPFs via scripts, but you still need to know the encoding of the original disks and how to describe them, so even that is not going to help 99.9% of KF users preserve their disks unless a script is written by someone who knows the format of the disk. The only tool I can think of that can currently make 'unnoffical' IPFs of Amiga disks is Keir Frasers Disk-Utilities for Linux. The drawback is every game that he's supported has had to be analysed and the disk format described correctly for it to create an IPF, which takes about an hour or so of time to do, and he doesn't have much time nowadays to add new formats as other work commitments/interests take priority, and also because it's a 'hobby' project! |
19 February 2017, 14:41 | #26 | |
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19 February 2017, 14:42 | #27 | |
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19 February 2017, 14:43 | #28 | ||
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Lots of good information appearing in the thread!
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Like I said, I've done similar work with WWarp images, and would be interested in poking around at more advanced formats. I'm sure there are others in the same situation. People who have experimented with writing WHD slaves or cracking have potentially useful knowledge. The problem is that there are generally no flux dumps available for the public to have a go at. I don't have a Kryoflux, an Amiga, or any floppy disks, and most of the dumping is going on almost behind closed doors. According to the Kryoflux Free forum post, they have 10,000 raw flux dumps. That's quite a lot more than the number of IPF releases! Where are they? It would be quite useful to have something like TOSEC for flux dumps. (And to preempt the forum police, that's not a request for IPF releases by SPS.) |
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19 February 2017, 14:52 | #29 |
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You'd be surprised. It's important to understand why the checksum is different though. It's not useful to collect images with different checksums if it's because someone has written to the floppy. But you have to know which of the checksums is from an unmodified disk to know which images to throw away. I wonder why the Amiga community is less dedicated to preserve their legacy as you say.
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19 February 2017, 14:55 | #30 |
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I saved and checked last year over 200 games missing on SPS, but mainly in German language... Problem is there are no people in the SPS team left taking care for Amiga.
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19 February 2017, 14:58 | #31 |
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The Amiga take on preservation has always gone hand-in-hand with piracy, and the tried and true methods of cracking has served its purpose of preservation well, whereas IPF images are quite useless if you want to play a game or run an application. The problems with SPS, flux images and IPF compared to the immediate usability of a WHDload slave or an ADF makes "proper" preservation more of an academic endeavour.
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19 February 2017, 15:00 | #32 |
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19 February 2017, 15:22 | #33 | |
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How can it be useless? The whole point of an IPF image is to document the content of the original disk with enough detail to be indistinguishable! It renders a crack superfluous, except for parts unrelated to disk access, like manual checks. |
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19 February 2017, 15:28 | #34 | |
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But SPS/IPF is still the only good standard, because it is working. |
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19 February 2017, 15:41 | #35 | ||
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19 February 2017, 16:29 | #36 |
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I see what you mean. That's only a problem as long as there still exists working floppy drives and Amiga hardware however. That won't always be the case.
Yes, I think RawDIC supports IPF images. Often slaves don't support cracked versions anyway. |
19 February 2017, 16:39 | #37 |
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WinUAE can be used to install an IPF image using WHDLoad (if the version is supported), then you can transfer that install to your Amiga provided you have the means to do so and you have WHDLoad already installed.
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19 February 2017, 16:43 | #38 |
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The slave installers can read IPF disk images directly instead of floppies, no need to use WinUAE.
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19 February 2017, 16:56 | #39 |
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You still have to get the IPF onto your Amiga, might as well install under WinUAE and transfer that.
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19 February 2017, 17:04 | #40 |
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You could also just download a pre-installed slave for additional convenience. The point is that IPF images aren't useless just because you need hardware to write them to physical floppies, but we're wandering off topic. The important part is preservation of the original data in the first place.
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