eDisk (stylized as e`Disk`) is "Hard Disk Enhancement" software that
promises to expand your hard disk "by 2, 3, or 4 Times".

The method by which eDisk accomplishes this is two-fold:

First, it installs a unique disk driver onto the hard disk you select,
allowing eDisk to take direct control of the block size of files, and
allowing eDisk to "reclaim" wasted space on the disk when writing/re-
writing data (presumably by reducing the minimum block size).

Second, eDisk compresses data on the fly, allowing files to take up
less space overall. This is similar to other compression software
programs such as DiskDoubler and others. Unlike other dynamic
compression software from that period, eDisk handles the compression
on the fly and in the background, reporting the saved space as
additional capacity on the volume.

The reporting of saved space as "additional capacity" can be somewhat
misleading, but the justification is that by compressing all of a
disk's files, the user gains additional "effective" capacity that one
wouldn't have otherwise had, while eDisk's driver continues to report
the original size of the (uncompressed) files.

(For example, if one has 100MB of data on a 100MB volume, and eDisk
hypothetically compresses all of the files on the volume by 50%, this
would under normal circumstances result in 50MB on a 100MB volume, but
the way in which eDisk would report it would be as 100MB on a 150MB
volume, resulting in an "effective" increase of the disk's capacity by
a third.)

Because of how this program works, it could be very dangerous if used
casually. It is highly recommended that one backs up their data before
installing if one plans to use it. Additionally, it may render the
installed hard disk unreadable to those computers without eDisk
installed, due to the proprietary driver that is used, as well as the
above-mentioned file compression algorithm.

Serial #: E105324

This download was copied from original media, and is packaged as an
800k Disk Copy 4.2 disk image, compressed with StuffIt 1.5.1, and
encoded as BinHex 4.0.

(v1.2)

See also
[Alysis SuperDisk!][1]
[Alysis Resource Compressor][2]

Compatibility
Architecture: 68k

The disk from which you run eDisk must be unlocked in order to run.

System Requirements
Macintosh Plus or higher
System Software 6.0.5 or later (fully System 7.1 compatible)
Hard drive/Removable cartridge drive/Floptical drive

  [1]: http://macintoshgarden.org/apps/superdisk
  [2]: http://macintoshgarden.org/apps/alysis-resource-compressor-2