I've just exchanged my BD-4600 for a new one - no luck, still the same lip sync issue. Setting the 'PCM down sampling' in Setup -> Audio to off, seems to shorten the audio delay a little but it remains out of sync.
To me this does look like a design fault. If indeed it is then Samsung should confirm that either they are going to fix it, preferably through a firmware update (even if an ETA can't yet be given) or recall the product. Until now, you've only mentioned you are 'researching' and 'addressing' it, which is vague.
I really don't want to have to change it for some ghastly squared box to then find out the issue has been resolved. So be clear on whether or not a fix is on the horizon.
HI all
I need help, i recently got a Samsung bd4600 blu-ray player, looks great. However when playing disks there is a lip sync lag, the audio comes after the mouth moves. It is more noticable with some filsm, Black hawk down being one of them.
I am connected to a Samsung LE40656 LCD TV via HDMI, the picture is fantastic just the sounds is behind, grrr. I have messed about with the settings on the player but wondering if it could be a TV issue ? there are lots of moces, game, film etc, would that make a difference ? I think it is 100mhz, is that a factor.
Please help me, i love the look of this player but very furstrating watching films now.
Thanks in hope
matt

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic