Here is a guide to install Rapid Photo Downloader on Ubuntu 13.04. You can install Rapid Photo Downloader using the Ubuntu Software Center.
Rapid Photo Downloader can be used by both professional and amateur photographers to download photos and videos from multiple cameras, memory cards and Portable Storage Devices simultaneously. It provides many flexible, user-defined options for subfolder creation, photo and video renaming, and backup. Visit the Rapid Photo Downloader Homepage.
To install Rapid Photo Downloader click on the link below
When the software center is opened click on the Install button and enter your password to authenticate the installation. When Rapid Photo Downloader is installed you can close the software center, to start Rapid Photo Downloader press the SuperKey and type: rapid photo downloader
How to open the apt link? Read this article.