Which DVD’s were you watching? There is a known flag issue on some prior releases. If you did not have the DTS DD 3.2:1 EX modes before you might have never noticed when viewing them in the past.
Is your player a new purchase? The only audio drops I have had on 3 950’s could be traced to a purchase of a player. At times I would loose audio without the pic freezing …sometimes the video would also skip.
Problem solved when I replaced the player.

Occasionally the 950 hunts the surround format (due to layer change, laser stops etc) but since I don’t’ use my OSD but rely on the LCD display on the front of the 950 for everything I do, its not an issue…as long as I don’t ‘hear’ an audio dropout its of no concern. I see the display changing when the DVD has DD 2.0 or some other format during credits, then switches and locks to DTS (if the soundtrack supports it…and I enabled it in the DVD menu) when the main film starts.during these I notice (if I watch the LCD) the 950 is acquiring DTS but I never hear any interruption of audio.