these screensavers have sound, can be muted from settings or even better by opening the win 7 volume mixer just after viewing preview you can reduce the music to next to inaudible. These screensavers work best with proper codecs installed (such as k-lite). if theres any problems please let me know in the comments. This one is creditless. [source](http://eizoutokuten.blogspot.com/2010/08/creditless-dvd-sora-no-otoshimono.html)