(for Macintosh OS X 10.4.2 and later, including Lion) Welcome to the CopyDrop home page. CopyDrop was written by Emmett Gray, the editor of Film Scouts.
CopyDrop is distributed as shareware. The unpaid version is fully functional, but has a built-in startup delay. This delay can be avoided by buying a registration code (from Kagi) for $10.00 US.
***Warning: You must upgrade CopyDrop to v 2.1 for use with OS X v 10.6.2 or later.***
***In certain circumstances, data loss could result from using an older version of CopyDrop with OS X v 10.6.2 or later ***
The concept of CopyDrop is to make it possible to use the Finder to drag and drop folders, volumes, and files in order to make "smart" copies of them, meaning that identical items already in the destination are not re-copied, saving time. There are two modes, "replace" and "merge". In "replace" mode, any items existing only in the destination will be removed such that the result will be a destination identical to the source. In "merge" mode, unique items in the destination are untouched such that the destination contains all files that were previously there (and not in the source) plus every file in the source.
Version 2.1, released June 28, 2012, is a universal binary which runs on all Macs. This version introduces an option to ignore Finder info (extended attributes) which can cause errors when copying to SMB volumes, particularly on Windows systems.
The Complete CopyDrop User Guide Online
For earlier operating systems, the prior version is still available:
Download CopyDrop version 1.0.3 (PPC only, OS 10.3.2 - 10.3.9 and 10.4.1)