[Kamog]

Thanks, I'm trying to figure this out without looking at any hints.

I have the following items so far:

red box
battery
A note with a URL
CD case with no label
small silver key
small golden key
cassette tape
metal stick
often-seen type of key
power supply cable
thin ring with sculpture
slightly heavy ring

Warning: spoiler.
I figured out how to open the red box by using the two rings and the metal stick. I insert the battery and cassette tape into the box and it plays a movie of a silloutte of a guy dancing. I have no idea what to do with that. The guy seems to point at some star-shaped object beside him but I don't know what that means.

I'll keep trying.