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1993-08-19
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Documentation for ICOPY.EXE
ImageCopy 2.0
Copyright
Patrick M. Ragan
CIS 100065,1602
What does ImageCopy do?
I use ImageCopy mainly to store images of diskettes onto my hard disk in
order to write them back onto the same kind of diskettes whenever I am
able to. Currently only disk drives A: and B: are supported, I guess I
could change that whenever the demand for any kind of disk drive arises.
The following diskette formats are supported:
3½" - 720 KB and 1.4 MB
5¼" - 360 KB and 1.2 MB
I wrote ImageCopy in order to be able to copy diskettes 1:1 without the must
of having the according amount of empty diskettes at hand, instead at least
some kind of PC or notebook hard disk drive. The disk images can be copied
back to diskettes whenever I please.
ImageCopy can be used either menu-driven or via command line, without
any fancy stuff. After reading a diskette you have the possibility to
compress the image, whereas the result of the compression depends on
the amount of data stored on diskette. After compressing ImageCopy then
decides to either keep the compressed version of the image or the
original. It _can_ happen that compressed images become larger than
originals, especially with very dense diskettes.
A small tip for compression: Diskettes that are not completely full
allow better compression ratios when they are first formatted before
written to. Erasing full diskettes with "DEL *.*" doesn't do the trick
since DOS only marks the files as deleted inside the FAT, whereas the
data still resides on the diskette.
ImageCopy "remembers" the diskette size of the original, so that it will ask
for the according diskette type when writing the image back to diskette at
a later time. Images are first decompressed in case of image compression. You
can have ImageCopy format a diskette for you first before writing the image
back.
What does ImageCopy not do?
ImageCopy _cannot_ copy diskettes with sector oriented copy protection
mechanisms. It is also not possible to copy images to diskettes that do not
match the size or capacity of the original, e.g. you can't copy the image
made of a 5¼" 1.2 MB diskette on to a 3½" 1.4 MB diskette (otherwise it
would not be an image anymore).
ImageCopy is free to use, I ask not to sell it. I regard it as FreeWare until
further notice. Should any problems or erros arise, or should anyone just
want to give his piece or make suggestions, feel free to contact me via
CompuServe. My CIS ID is 100065,1602 .
* Version revision *
Version 2.1
- Bug-Fix, compressed Images of images created before ICOPY 2.0
could not be decompressed with 2.0.
Version 2.0
- Joined the Englisch and German version into one package by checking
the system country code
- Changed switch "-V" to "V"
- Possibility to activate ImageCopy via command line options
- Bug-fix, "Abort/Retry" now accepts non-capitol entries during
formatting errors
- Copy, formatting and compression status is displayed as a bar inside
the menu
- Diskette drives inside the menu are no longer restricted to Drive A:
or B:
Version 1.3
- Bug fix, aborting compression after full hard disk
- Compression status shown in percent instead of bytes
- Diskette drive entry not required for PCs with only one diskette drive
Version 1.2
- Bug fix, diskette Read Errors abort copy process correctly
Version 1.1
- A comment of 20 character length may be entered for an image file.
- When writing to diskette, the current directory can be searched for image
files, presuming there are image files inside the current directory. In
addition diskette size and comment are also displayed.
- A switch "-V" was introduced in order to display image comments when
calling ImageCopy.
- ICCONV.EXE should be used to convert images created with version 1.0.