I am so sorry that you are running into the Cinavia watermark dilemma. Unfortunately, there is not much i can do about it. Cinavia Protection is an obnoxious watermarking system. When trying to play media with the embedded watermark, your player will recognize said watermark and check whether your device is authorized or not. RedBox runs into the same inconvenience.
I use the same team that edits media intended for public viewings or “tv edits”. The equipment used to broadcast the edited content is authorized; your BlueRay player is not. You are able to play those watermarked titles on a standard DVD player, but in case you don't have one of those laying around, i am trying to compile a list of all titles that display the Cinavia Error Message for your convenience. I will add to the list as i am made aware of titles that have been embedded. Once more, i am so sorry for the trouble.
UPDATE: I can not longer offer Flash Drives (Because they don't work in ALL Blu-Ray devices), or Refunds/Store credit for Cinavia watermarked titles. When using a DVD player, all of these titles are viewable. Unfortunately, not all Blu-Ray players will play these titles through. Please consult the following list of Cinavia watermarked titles before purchase. Thank you for your understanding and your support.