From Glue Tools:
Allows MacOSX and any QuickTime enabled Application to work with Cineon or DPX Sequences directly. With this package, Finder becomes fully aware of these files. MacOSX services such as Spotlight, Thumbnail Previews, and basic QuickTime Playback is provided. The Cineon file format is a widely used digital film image format which was developed by Kodak for the Feature Film industry. The DPX digital image file format was developed by SMPTE and is used heavily in the Feature Film and High Definition broadcast industries for production.