Actually, I don't need a special reason to learn about XML, I'm always curious about technical stuff. So, I'm happy to know about that, whether or not I need it.
Oh, as I see,
Orbit Downloader is in your recorder list, too. I really didn't find it via this list, these days. I got the recommendation for it in another forum, which I found via Google. It had seemed to me, that there was only non-free software in your list, so I did not read it properly and down to the end.
I have now already downloaded a lot of files from Dudevu. Thus it seems Orbit Downloader will make me content.
Greets