What is the best way to create a SHARE folder (with folders of pictures and music files) between "guests" and "admins" that ANY users can read and write and modify these files. I keep having trouble that its says the files are "READ ONLY" and can only be modify by the owner. I try to play around with "Ownership and Permission" settings under "Get Info", but no luck! I set the ownership to blank " " and permission to blank " " also, but it didnt work either. What should I do?