The 5.1.4 version of copyThing for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The program belongs to System Tools. This free software for Mac OS X was originally designed by crispSofties.
From the developer:
copyThing is an application that helps you copy media files from iPhone, iPod, or iPad devices to your iTunes library. With this application, you can transfer music, videos, playlists, song ratings, and more to any iTunes library, without duplicates. This way, you can restore your entire iTunes library with just one click.
You may want to check out more Mac applications, such as Mozy, Online Backup or shadowBurn, which might be similar to copyThing.