MacBinary

MacBinary is a format for encoding Macintosh files for transmission including directory metadata and both the data and resource forks, so that all system-specific aspects of the file can be reconstituted at the other end of the transmission. It is similar in concept to the Binary II format for the Apple II.

Several different versions of this format have been released to accommodate changes in the Mac filesystem. Since the release of OS X, different archivers have been used and MacBinary has gone out of common use.

Links

 * Wikipedia article
 * MacBinary II spec
 * MacBinary II+ proposed spec
 * Mac Binary Converter