What resolution is the Blu-Ray set to? In many cases, this symptom is due to the resolution being too low. You can go into the Setup Menu of the Blu-Ray player and adjust it to see if you get better results.
I just tried the latest Transformers and the picture is grainy. The connection is with a good HDMI cable. I switched the TV to Movie mode which removes some graininess but on some scenes the picture is quite annoying.
I have the latest firmware.
Is there any better decoders on the DB-P2500?
Any ideas how to improve the quality?