There are certain Blu-ray discs with DTS-HD Master Audio tracks that have a point in the disc where they will produce a frighteningly loud noise. It's unrelated to the audio track (the one I used to test my unit was in a quiet scene in The Fly). This noise became known as the "bitstream bomb" because it only happened when bitstreaming the audio (players that decoded DTS and output PCM didn't have the bug). As for the 885, I'd have to dig into the firmware thread at AVS to recall all the details of its current status.