This is a QuickTime technology, but for the best result we use the (free panorama viewer) GLPanoView, based on OpenGL video acceleration. Sit back and watch the autorotation of panoramas, or use its interactive resources. To do this, hold down your mouse button and drag it over the picture window to control your view in any direction of 360 degrees. Use (+) to zoom in and (-) to zoom out. The panorama will automatically pan until you click on it.