[Scribus] Copying a complete Scribus file (.sla) on an external media

[Alberto Zeni]

Hello,
I'll be grateful to you if you explain me the correct way to copy a  
complete Scribus document on an external media (e.g. an USB Key or a  
CD-R).
In fact I haven't still well understood how "Collect for Output" and  
"Save" work.
With kind regards,
Alberto Zeni