Not read the whole thread, but I remember a few years back (just before Hung Up was released I think) she was successfully sued in Belgium for plagiarising 'Frozen'. I seem to remember hearing the plagiarised clip in question and it was just a ridiculous comparison. I'm surprised she didn't fight it although she probably couldn't be arsed. I do believe sales of both that track and Ray of Light the album are banned in the country.
Also, the Goldfrapp/'Sorry' cover comparison from the OPs link is total rubbish. The 'Sorry' cover was a fan photograph taken from one of Madonnas live shows and that face pose is quite clearly incidental. The original can be found on Google images (what a different photoshop can make!