This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
Diskcopy is a Mac disk image format with names ending in ".dimg", ".img", ".image", or with no suffix. (Sometimes, incorrectly, ".dsk" is used.) The typical length of a Diskcopy file used for an Apple II 800k image is 838,484 bytes*. On a Mac, you can use the Mac Diskcopy utility to convert diskettes to images or images to diskettes. On a IIgs, you can use Clone or Diskcopy to convert a Diskcopy image to diskette. (It may be necessary to set filetype to $E0 and auxtype to $0005 in order for the file to be recognized as a Diskcopy image.) Clone is more user-friendly. Both utilities work fine for converting Diskcopy images (such as those on the Golden Orchard CD) to 3.5" diskette. If the Diskcopy file was created under a version greater than 4.2, you will probably need to do any conversions on a Mac which can run a later version of Diskcopy. On a PC, the XGS utility Imgutnew.exe can be used to convert most available Diskcopy images of Apple II software to 2MG image format. The Diskcopy image name may need to be changed (spaces removed, etc.) to fit PC DOS format in order for Imgutnew.exe to work. *See ... Size Note: Transferring to 3.5" disk (at bottom of this page) ___________________________ By: Charlie Danemark and Andy McFadden