Hey, What Mr Mark said is pretty much right, if you have a look at the zone minder site I linked to before it will show those commands. Also just note the note on that same site about using snapshot.cgi rather than videostream. Like it says I have had much better success with snapshot rather than videostream. The difference is that the snapshot is .jpg while the videostream is mjpg and most cam viewers (inc PICED) are expecting a jpg and refresh automatically. If you are just viewing through a browser though you can use videostream :-) PS. of course all these commands are for cams with foscam firmware in them, but pretty much any camera that allows http strings allows resolution changes... J