I am the (not so) proud owner of a BD-C6900 aswell, and have been experiencing quite a lot of problems with it.
Last week i bought The Hobbit 3d Blu-ray and tried to play it on the blu-ray player. After about 10-20 seconds the blu-ray disk would be rejected saying saying it has unknown specifications. The blu-ray came with an non-3D disk aswell and the player IS able to play that one, so thats kinda wierd.
I got the 1025 firmware update aswell, and I am suspecting the player just doesnt know the type of 3d blu-ray which "The Hobbit" is burned on.
So i got in contact with Samsung, which didnt help at all, cause they would just say, update your firmware (even though I said in my mail I alreaddy have the 1025 firmware update).
Does anyone know if this really is a firmware error, and if yes, is samsung even working on this?
Btw, I am able to play a blu-ray 3d disk from a couple of years ago (how to train you dragon) which works quite alright. So it really seems its only with new 3d blu-rays of last year.
Thanks for your time.