Polyvid Pro is a screen saver that can play movies and image files. It lets you play .mpg, .avi, .mov, .jpg, .bmp, .gif and animated gif files. Also, this version has full QuickTime support. You simply add the files you want in the list and Polyvid Pro will play them in the order you specify. After playing the last file in the list, it will restart from the top. Also, you can set different display sizes and you can enable or disable sound. You can change the background color for files that are not displayed full screen. You can set a duration time for images. Each file can have it's own settings or use a global default setting. The number of files you can put in the list is illimited.