Tomas,
There is a nice explanation from Raphael about the media scanning service in his post here: http://community.wd.com/t5/WD-My-Cloud/before-you-pack-up-your-WD-and-return-it-let-s-talk-about/td-p/683307
You have to scroll half way down the first post to the heading " Finally the problem with WD Cloud"
I’m not so sure about using Twonky and itunes. I have turned these off as I do not need them. Hopefully someone else will answer.
