Voici la procédure pour mettre Camera Raw sur Mac :
En anglais (désolé...)

To open a DMG file:
Double-click the file. This will open Disk Copy, which mounts the image on your desktop.

For Camera Raw:
This new version of the Camera Raw plug-in replaces the original Camera Raw plug-in that was installed with Photoshop CS3, Adobe Creative Suite 3, or Photoshop Elements 4.0.

To install with Adobe Creative Suite 3 or Photoshop CS3:

1. Quit the application.
2. Open the Finder.
3. Navigate to: (Please read directory carefully)

Library/Application Support/Adobe/Plug-Ins/CS3/File Formats

4. Move the existing plug-in to another location (for example, a new folder on your desktop). Ensure you keep this version in case you need to revert back.
5. Copy the Camera Raw plug-in, Camera Raw, from the download into the same folder as in Step 3.
6. Launch Photoshop CS3 or Adobe Bridge