All virtual views are available in both QuicktimeVR and Java format. The QuicktimeVR requires the free Quicktime (version 5 or later) plugin. It takes a bit longer to download - but is larger and therefore of higher quality. If you don't have the Quicktime plugin (you can download it for free from Apple by clicking the download link below) or if you don't want to install the plugin or are on a slow connection, use the Java version.