I count not find anything related to my problem on the already created threads so i made new one. Please feel free to delete it and redirect me to exesting one (if i missed it).

I get to the point right away. A client needs a royalty free license. I have never use this kind of licensing. After tons of reaserch it seems to me that royalty-free means you are licensing all the rights nonexclusively one time and the client can use it infinite numbers of times in any format they want (basicly a licence of all rights without any restrictions). Is that right ?