Questions tagged [disk-image]
For questions about the creation and use of disk images - raw data from a storage medium that has been extracted into a file.
45 questions
11votes
1answer
231views
What is the format of a DART disk image file?
In the early 1990s, Apple used a utility called the Disk Archive / Retrieval Tool, or DART, to make compressed images of floppy disks. It was superseded by Disk Copy. Very little information about ...
- 9,640
3votes
2answers
349views
How to use BASIC-86 from Microsoft with SCP 8086 simulator
After the exciting news that a very early version of 86-DOS (0.11) from Seattle Computer Products was found I played a bit with the simh / Altair Z80 simulator to run the 86-DOS image and was ...
- 412
6votes
2answers
895views
Apple ][ nibble disk format specification
Is there an official specification for .nib format disks for the Apple? I'm currently debugging through a CP/M boot disk for a Cirtech //e Z80 which works fine on real hardware but fails in an ...
- 5,347
6votes
3answers
1kviews
How do I make an Apple II disk image with the sectors in physical order?
As far as I understand: a .do or .dsk file extension indicates that the sectors in a disk image are in AppleDOS order (i.e. the physical sectors are in order 0, 13, 11, 9 etc). a .po file extension ...
- 1,480
11votes
2answers
3kviews
Install a DOS application consisting of 5 .IMG files (when expanded) on Windows 10 running DOSBox-X [closed]
I downloaded a copy of DataEase 4.5 database. Once I expanded the download, it had five .IMG files representing the original five 3.5" floppy disks. I wish to install the software so it can run ...
15votes
2answers
512views
Looking to recover data from OC-800 WORM disks
I have a set of OC-800 WORM disks (768MB) which contain vintage TV graphics from the '90s, written by an Ampex Electronic Still-Store (ESS). I'd like to retrieve the data from them if I can. These ...
- 666
13votes
1answer
961views
Why is QEMU cutting off the last cylinder of the disk image?
I made a new disk image with the command dd if=/dev/zero of=hd.img bs=512 count=$(expr 16 \* 63 \* \( 15 \* 16 + 8 \)) which corresponds to creating a disk that would fill exactly with QEMU's default ...
- 1,986
1vote
2answers
300views
Where can I obtain Olivetti P6060 disk images?
For a long time now, I've been looking for disk images from an Olivetti P6060, but so far I've found none. The Olivetti P6060 was the second computer I wrote programs on, so making an emulator for it ...
- 32.7k
2votes
1answer
2kviews
How to write Apple IIgs .po disk images to Floppy Disks with an older Mac
I recently acquired an Apple IIgs with two 3.5" floppy drives and no hard disk. I'm very seasoned with older Macs, but I have no experience within the Apple II world. I search for a way to create ...
- 1,282
4votes
3answers
1kviews
How to use IBM SaveDskF floppy format on modern machine
Is there a way to write IBM SaveDskF disk images to a floppy on a modern machine? The floppy drive is connected via USB. Some comment somewhere said to use WinImage, but I tried that and it said the ...
- 2,161
9votes
1answer
187views
Compucolor 2 emulator CCEmu's `.ccvf` disk format
This Compucolor 2 emulator uses disk images with the file extension .ccvf. Here is an example file. I would like to understand how to interpret that format. I understand from the documentation that ...
- 2,820
8votes
3answers
607views
How to transfer AT&T 6300 ".360" disk images onto physical floppies
I got these MS-DOS 3.3 disk images for the AT&T 6300 from archive.org: ATDOS331.360 ATDOS332.360 ATDOS333.360 ATDOS334.360 Supposing that I have access to a physical 5.25″ floppy drive running ...
- 439
7votes
1answer
589views
What floppy disk format and layout and what disk image format are used for the Coleco Adam?
I just found out that emulators for the Coleco Adam use a disk image file format with the DSK file extension. This is a very very overused extension on many different disk formats. Though a few DSK ...
- 8,064
3votes
0answers
447views
Do the Tandy CoCo and the Dragon 32 & 64 use all the same disk image file formats?
Tandy's TRS-80 Color Computer "CoCo" and the Dragon 32 & 64 were very similar but not clones and not the same. Floppy disk versions used totally different DOSes and disk layouts. Both ...
- 8,064
6votes
1answer
559views
Determining which sectors in an Apple II floppy disk/image are used when the boot sector declares more than 1 sectors
The Apple II disk bootstrap process looks at the first byte of track zero sector zero to see how many sectors long the bootstrap code will be. It then loads these sectors at location 0x0800 and jumps ...
- 8,064
