Methods and systems for network-based purchase and distribution of media are disclosed. The purchase and distribution of media by these methods and systems are not only secure but also controlled. The security restricts access to media within media files during downloads as well as while stored at a server and/or client. For example, a potential purchaser can search and browse through numerous media items on-line that are available for purchase. The potential purchaser can thereafter purchase one or more media items on-line with great ease. Upon purchasing a media item, the content for the media item can be downloaded over the network to the purchaser. The content for the media item is then encrypted for the purchaser's use and stored on the purchaser's machine. Thereafter, the purchaser can make use of the media item (e.g., play the media item). Improved graphical user interfaces suitable for reviewing, browsing, previewing and/or purchasing numerous media items are also disclosed.