Problems/advice with ripping Apple ][ 5.25" floppies...

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brightcaster
Posts: 131
Joined: Fri Nov 08, 2013 10:48 pm

Re: Problems/advice with ripping Apple ][ 5.25" floppies...

Post by brightcaster » Wed Jan 11, 2017 5:11 pm

What problem? The initial problem (first posting from joejoetheclown) of this thread wasn't a real problem but a misinterpretation of the GUIs output!

If you are using 80 track drives to read 40 track disks, you should read every second track to get a proper result. The GUI does this by design an not by fault.

Did you test your copies? Do they read fine in ciderpress for example (http://a2ciderpress.com/)?

Dont be misslead by not all dots beeing green. Yellow/orange dots are okay as long as they are not red or grey ;-)

Or do you use 40 track drives, like joejoetheclown did? If you get orange dots do they have the letter T in the box? Than it is indeed a matter of stepping to the wrong (not expected) track!

Regards, David

SomeGuy
Posts: 156
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Re: Problems/advice with ripping Apple ][ 5.25" floppies...

Post by SomeGuy » Wed Jan 11, 2017 8:35 pm

The Apple II, and a few other formats *REQUIRE* that you use a 1.2mb (80 track) drive - and it doesn't tell you that. The only reason being that some Apple II copy protections can make use of half-tracks.

If you are using a 360k (40 track) drive, you will get the screen shown above. If you try to override the double step setting, the Kryoflux software will tell you it won't do that. It is illogical as you really should use a 360k drive for reading/writing non-copy protected Apple II disks. It is also problematic for data recovery as often a genuine 360k drive will have more success reading damaged sectors than a 1.2mb drive.

lionelb
Posts: 2
Joined: Tue Jan 10, 2017 7:41 pm

Re: Problems/advice with ripping Apple ][ 5.25" floppies...

Post by lionelb » Thu Jan 12, 2017 11:58 am

hello and thank you for your attention, after few hours I Found the correct settings not by default, I will put an image here with the settings, with all squares green !!
thank thank !!

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IFW
Posts: 3077
Joined: Mon Nov 08, 2010 2:42 pm

Re: Problems/advice with ripping Apple ][ 5.25" floppies...

Post by IFW » Sun Jan 29, 2017 7:59 pm

Use a 80 track drive please.
What is the result you get from drive calibration?
dtc -c2

airnocker
Posts: 21
Joined: Fri Jul 21, 2017 9:13 pm

Re: Problems/advice with ripping Apple ][ 5.25" floppies...

Post by airnocker » Mon Aug 07, 2017 8:05 pm

This is a rather late reply to this post, but I like documenting solutions. I've been rather successful in imaging my Apple DOS3.3 disks using a Panasonic 5-1/4 drive JU-475 5AKJ (old new stock purchased on EBay recently). This drive calibrates as an 83 track drive and for Apple IIe DOS 3.3 disks reads every other track with 35 of the first tracks being valid data.

Using the "-dd1" made a big difference for me and using the command line produced (so far) more reliably read disks. Here is the command line I used.

dtc -f<streamname.raw> -i0 -f<imagename.img> -x0 -i8 -l8 -dd1

This creates both the raw stream file and an image file. To omit the stream file creation simply use this.

dtc -f<imagename.img> -x0 -i8 -l8 -dd1
airnocker
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rcade
Posts: 109
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Re: Problems/advice with ripping Apple ][ 5.25" floppies...

Post by rcade » Sat Feb 03, 2018 9:41 pm

Apple II disks can actually sometimes use 1/4 tracks...
-
Pete Rittwage
C64 Preservation Project
http://c64preservation.com

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IFW
Posts: 3077
Joined: Mon Nov 08, 2010 2:42 pm

Re: Problems/advice with ripping Apple ][ 5.25" floppies...

Post by IFW » Sat Feb 03, 2018 10:17 pm

Not an issue as long as the disk is professionally duplicated - Trace couldn't :)

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