It seems that Samsung is having some problems with its DUO Blu-Ray/HD DVD player.
According to DVD Town, Samsung will delay its Profile 1.1 compatibility for its UP5000 DUO HD DVD/Blu-ray player. The upgrade was set to be available in January, but now Samsung has said that the upgrade will not be ready by the end of the month. Reasons for the delay were not made clear.
The story also mentions that the player has been having problems with Blu-Ray discs that have the BD+ copy protection, and that could lead to the player being discontinued earlier than planned. The BD-UP5500 will replace that player in late May, and will be Profile 1.1 compatible.