My flight from FRA to IAH was canceled last May for mechanical reasons. They couldn't get me a seat for two days (and then through EWR). I wrote a letter to Continental asking for compensation under the EU rules and was also sent a $200 travel voucher, an apology and a notice that if I used the voucher I was releasing Continental from further claims. I do feel that I was entitled to the EU compensation, but took the $200 and moved on. I'd like to see someone pursue this further and see of Continental will abide by the EU rules if pushed.