Kryoflux Personal Edition Advanced
- Thread starter merlinkv
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Hi to all,
I'm waiting my new Kryoflux so, I don't have the possibiility to test. I can't wait... sorry....
I have one question.....
If I don't remember bad, Dungeon Master have one of the most powerfull floppy protection system (random access to random tracks at random times.....) Anyone can test it?
- IPF-to-Floppy?
- Original-to-Backup copy?
Thanks in advance, I have the original Dungeon Master and is one of my loved games
Hmm....are you sure? I've already copied the IPF to disk - it's just a normal DOS Disk and surprisingly the game works on a heavy loaded A4000.
Hi mate
You copy the ipf to disk with Kryoflux, right? .... So, you have a "Master Backup Copy" with all protections unmodiffied.
I not received my Kryoflux, but I cannot copy my own disk as a normal DOS disk.....
http://dmweb.free.fr/?q=node/210
I'm not so sure about those ALPS drives now.
I was using an ALPS drive before to make ADFs and such, no problem.
And the first IPFs I wrote, the LethalXcess worked fine.
But no go with SuperHangOn.
So, I tried with an Epson SMD-300, same floppy and IPF from before and it worked..
So, that Alps was OK for reading (at least what I read) to ADF, but it wasn't good enough for writing at least SuperHang-On (and I'm guessing others as well)...
YMMV tho...
Good luck..
desiv
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Hi mate
Thanks for the info
Maybe the protection is in the frist versions?. With my version you can copy the disk (XCopy) , but when you try to play the game crashes or stops randomly. Maybe a problem of the media? I don't know... all my floppys are in good storage box, but is a possibility.
In anyway I have the same ipf from Psygnosis. I will try with this image....
---------- Post added at 05:28 ---------- Previous post was at 05:22 ----------
Hi mate
Thanks for the info
Also I have some working units of the Sony MPF-920 & Samsung SFD-321B.
But, of course, I need to test all of them with good quality media (for "Master Backups"
Here are some pictures of the KryoFlux user interface with Dungeon Master image. Scroll down to "Protection Track".
http://www.softpres.org/kryoflux:ui:stream-plot
This is an interesting protection (perhaps only on early releases, I can't remember) that confused the floppy controller into producing different data each time it was read.
http://www.softpres.org/kryoflux:ui:stream-plot
This is an interesting protection (perhaps only on early releases, I can't remember) that confused the floppy controller into producing different data each time it was read.
That's true for IPF files. Good copy protection just can't copied, it creates ambiguity. IPFs store true masterin data. It was not our decision to protect floppies in the first place, we just happen to have the knowledge to preserve them. Bringing them back to floppy is a nice side effect.
The software will be developed further and one day writing of raw (stream or draft format) will come. BUT: We can't rule out ambiguity. The best stuff will still need some tampering to copy correctly. You might want to do this on your own, buy messing with the raw data read, or you e.g. take the IPF that exists.
I'd like to make sure that people understand KryoFlux hasn't been crippled. The hardware is capable of all of this, all you need to do is feed it the right data...
Understood..
The fact is, this is incredibly complicated stuff and there are many many different variables...
You guys have delivered on your statements so far (kryoflux to market - Check. write support - Check), so I'm not worried about the future.
And when we can write stream or draft, I'm totally OK with a format that is known to be 98% (or whatever) accurate for my ability range.
And, if I find a disk that isn't working for me, there are the known IPFs, and if that doesn't exist yet, there is SPS...
All in all, I think this is a great product and I'm happy to be an owner....
You guys are awesome!!
Just my $0.00000002 worth..
desiv
From the collectors point of view the IPF write support is much more important than the write support of the own stream files. Only the IPF-format can guarantee that I'll get a 100% original and working copy of the game. So the whole team have done a great job - thank you. http://dict.leo.org/ende?lp=ende&p=Ci4HO3kMAA&search=guarantee&trestr=0x8002
I've had a Kryoflux since just after its original release and have been more than happy with it. I've archived a lot of disks to ADF with it from my personal collection so I have working backups.
I've also been a member of the beta testing and have been playing around with the write support. In the betas it has been getting better, but the drive you use is the most important part. Some drives will read and make images perfectly, but then have issues writing an image back to disk because that process is more intensive.
The drive I use the most is an ALPs and it seems to have the best reliability so far. It can read to track 84 which is also useful. Other drives I have that seem to work well are Sony and Samsung units.
I've also been a member of the beta testing and have been playing around with the write support. In the betas it has been getting better, but the drive you use is the most important part. Some drives will read and make images perfectly, but then have issues writing an image back to disk because that process is more intensive.
The drive I use the most is an ALPs and it seems to have the best reliability so far. It can read to track 84 which is also useful. Other drives I have that seem to work well are Sony and Samsung units.
Just received my Kryoflux yesterday.
Not received my "new" APLs drives but working/testing now with two Sony MPF920.
At the moment IPF write works great, even using old HD floppys (with the hole closed).
Testing the floppys in one A600 with KS 3.1 and 1.3 every game runs and I can play without probs.
Now I want to start to store my FD collection in image format. But, as I know, the problem became with the protected disks, right?
With protected FDD's, I cannot made an image an write back again to the floppy?
Thanks
Not received my "new" APLs drives but working/testing now with two Sony MPF920.
At the moment IPF write works great, even using old HD floppys (with the hole closed).
Testing the floppys in one A600 with KS 3.1 and 1.3 every game runs and I can play without probs.
Now I want to start to store my FD collection in image format. But, as I know, the problem became with the protected disks, right?
With protected FDD's, I cannot made an image an write back again to the floppy?
Thanks
At the moment the stumbling block is the supported formats. Only IPF files are currently supported for writing back to disk, but you cannot at the moment use the Krypflux to make IPFs. If we could, then write protected disks wouldn't be a problem as the IPF format is designed to make perfect images so it retains everything, and then writes it back to the disk perfectly retaining all protection. However, because at the moment ADF is all we can use to make images we are stuck.
If the team ever make IPF creation possible then we will have that ability to image write protected disks and write them back perfectly.
It is still possible to make working ADFs from protected disks, but there will always be issues with some disks when making the images. Also the drive being used is important as some will create better images, and be able to read more disks properly.
As I mentioned earlier I've been using ALPs drives and had pretty good success with them, but some disks I've tried to archive have failed to read correctly, so I'm now going to try and source a Samsung drive (as Kryoflux was developed with them specifically) to see if that Improves the reading accuracy and success rate.
If the team ever make IPF creation possible then we will have that ability to image write protected disks and write them back perfectly.
It is still possible to make working ADFs from protected disks, but there will always be issues with some disks when making the images. Also the drive being used is important as some will create better images, and be able to read more disks properly.
As I mentioned earlier I've been using ALPs drives and had pretty good success with them, but some disks I've tried to archive have failed to read correctly, so I'm now going to try and source a Samsung drive (as Kryoflux was developed with them specifically) to see if that Improves the reading accuracy and success rate.
@Harrison
Thanks for the info my friend
Backed-up some original disks as "AmigaDOS Sector Image":
- Deluxe Paint III 1989
- Soccer Kid 1993
Some erros detected in two disks... repaired by KryoFlux?
- Birds of Prey 1991
- Arabian Nights 1993
- Jaguar XJ220 1992
All tracks apperas in grey. Maybe protected?
Now I will try to write back to disk using TSGui
More info soon
Thanks for the info my friend
Backed-up some original disks as "AmigaDOS Sector Image":
- Deluxe Paint III 1989
- Soccer Kid 1993
Some erros detected in two disks... repaired by KryoFlux?
- Birds of Prey 1991
- Arabian Nights 1993
- Jaguar XJ220 1992
All tracks apperas in grey. Maybe protected?
Now I will try to write back to disk using TSGui
More info soon
Regarding disk errors. I often find if there are only a couple of bad sectors when it is reading the disk and making the image that it often works OK. I tested this with some PD slideshow disks, because these are easy to test the whole contents of the disk as it has to load the whole contents of the disk to run through the whole slideshow, so any disk read errows will show with corrupted images , read errors or disk CRC errors. I found this often didn't happen even with a couple of bad sectors.
Strangely I've also found that sometimes if a disk is generating lots of errors, if I stop it, make a disk image for a different disk, and then try with the disk again it can often then read the disk fully with no errors. A little strange but true. Sort of makes disks feel like they are unpredictable living things, rather than storing digital data.
Strangely I've also found that sometimes if a disk is generating lots of errors, if I stop it, make a disk image for a different disk, and then try with the disk again it can often then read the disk fully with no errors. A little strange but true. Sort of makes disks feel like they are unpredictable living things, rather than storing digital data.
The team are working on adding writing support for ADF and other sector image formats. Once that happens I have high hopes that this will solve the issue. until then the Kryoflux is best used for backup purposes, or for writing known good IPF files.
All IPF's are verified as best they can to be perfect copies of the original disks, yes. What I meant is that not all disks are available as IPF's so it limits it a bit at the moment. Also there might not be the same versions of a disk available as is required.
ADF will never be as accurate or safe as IPF so I do hope reading to IPF does become possible at some point.
ADF will never be as accurate or safe as IPF so I do hope reading to IPF does become possible at some point.