And they could make their site completely commercial. It would be a major job to get the same music back if that happens after many years. Guess, people should submit their music to as many places as possible. What is the GPL for audio and for photos? Would that be a good idea? I'm thinking a sound effect library and a photo library which could be used, e.g., in games. I want that a game developer who makes a sky texture box out of our photos would have to make his texture box available. I also would like to collect photos from all over the world, taken by volunteers. The license should be good from the volunteer's viewpoint. Their work should be credited properly. E.g., the sky box by N.N. based on photo by M.M. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software