The application is currently running in trial mode. While running in trial mode, some features are disabled. These features will be activated when you buy a full version of the software.
The following features are disabled while running in trial mode:
MPEG-2 import and export
H.264 import and export
In addition, Adobe Encore CS3 is included with the retail version of Premiere Pro CS3. Encore CS3 provides professional authoring for DVD, Blu-ray and Flash distribution and is not available as a trial version.
The dialog that comes up in the PPro 2 trial (that says, you have XX days left) has a hyperlink to "About Adobe Premiere Pro". If you click that, it displays a readme-type text file with the limitiations of the tryout, requirements, etc.