Dear ColinM, the jD3.9.5 is released but still cannot choose more than one category. And to make a patch it's not a good idea I don't want to duplicate downloads. thnk when the user downloaded a file, but later when he searches he can be lead to the duplicated in this way it will show he must before download.
I use CW Multicategories for articles to be in 3 or more categories, but this hasn't any effect on jDownload, man I wish to solve this issue.