> maybe i am stupid but i tried out several times only to 
> copy media files of a website. it works when i include 
all 
> files but when i use filters httrack doesn`t copy 
anything? 

You have to download html files, too, or httrack will not 
be able to find the links!

Use something like:

Set Options / Scan rules:
-* +www.example.com/*.htm +www.example.com/*.asp +*.mp3