it is updated and i tryied everything...why the hell when i select bitstream the ps3 tells me ''if you select bitstream it is possible that some portion of the bd could not be read''?...
I think they meant: "any secondary content, like menu beeps or the audio that accompanies Picture-in-Picture interactive features is not part of the original bitstream and will not be transmitted. Audio commentaries and alternative-language audio may also be affected, depending on how the disc was authored.
The only way to send the additional content is by allowing the disc player to perform the audio decoding itself, during which the player mixes the new material on top of the movie soundtrack for transmission in either PCM or analog format. In some cases, you may lose the lossless soundtrack. If you are watching a movie with the Bonus View features enabled, and you want to restore the high resolution audio, it may require you to stop the disc playback to go to the player’s setup menu, and that can be a big nuisance."
The above are quoted from a post over at blu-ray.com forum (
http://forum.blu-ray.com/showthread.php?t=41820)
The poster seems quite knowledgeable on this topic so I strongly recommend you read the whole thing, or at least the paragraph under the heading "THE IMPLICATIONS OF DIGITAL BITSTREAMING ON AUDIO IN BONUS VIEW FEATURES"
I also read about this issue discussed in more than one reviews done buy some AV magazine but I do not remember which one.
Anyway, with the slim 120G you have the options of forcing it to output LPCM or bitstream. I don't care about those bonus view things and I prefer to let my receiver do the decoding. If I had an entry level receiver, I might have opted for LPCM.