Abstract of INFO-MAC archived encoded Mac binary file
   'disk/copy-thru-31.hqx'
  Uploaded 10/10/1997   392055 bytes

From: hellstrm@jagunet.com
Subject: CopyThru v3.1


CopyThru v3.1 makes duplicates of HFS volumes with the option of 
segmenting the copy through a fixed (or simply not-removed) volume.  In 
other words, it is a multi-pass block copier for removable media.
It is particularly useful for making backups of valuable data stored
on Zip, EzFlyer, Jaz, and other carts.  CopyThru can also perform
high-speed direct disk-to-disk copies.

CopyThru fills up one or more hard drives (or as much of it as you permit 
to be filled-up) with blocks, ejects the source volume, requests the 
destination volume, and then repeats until the copy is completed.
It is heavily multi-threaded and uses asynchronous I/O so is much faster
than Finder-dragging.

CopyThru can copy almost anything; including disks with scratches, ball-point
marks, footprints, and even pin-holes.

Many options are supported.
	
Although v3.1 is now shareware it is quite inexpensive.

Ben Hellstrom
hellstrm@jagunet.com