It appears I get to report a new bug(oh boy!). I am a big fan of TV on disc. I don't pay for cable ever and spend that money on TV discs instead. I started this before streaming went mainstream and the term "bing watching" hadn't even been coined yet. The following data was sent to Oppo customer service over the weekend.
*"I have had issues with several DVD's audio track. The DVD's in question are from television shows only. The audio in the start up menus play properly but once you select an episode to play the volume cuts out. The audio data is there in the info screen but no sound comes out. I have found a work around to make the audio work but is a step I would like to remove. Once an episode is playing you can press the options button on the remote and scroll down to the A/V Sync option. Just choosing that option and making the sync slider appear on screen makes the audio work properly. No need to adjust the sync at all. Just hit return and the options disappear and the sound is fine. I have tried this on many shows and just a few have the issue.
The following shows had audio issues. Some shows had issues on some seasons but no issues on other seasons.
Castle - seasons 7 & 8, Babylon 5 - seasons 3 & 4, The Big Bang Theory - seasons 7 & 8, Fairly Legal - season 1, Elementary - season 3, Grey's Anatomy - season 7, The Mentalist - season 6.
The following shows had NO issues. This might help narrow down a manufacturer.
The Big Bang Theory - season 1 & 2, Grey's Anatomy - season 1 & 2, The Mentalist - season 1, Stargate SG-1 - season 1, Dexter - season 1. Home Improvement - season 2, White Collar - season 1, Leverage - season 1, Bones - season 2, NCIS - season 1, Chuck - season 1, Rizzoli & Isles - season 1.
I have over 400 seasons of TV on DVD and don't have time to test all of them.
I have had NO issues with TV on Blu-ray. I tested Star Trek: TNG - season 1, Firefly - season 1(& only , bummer!), True Blood - season 1, Gotham - season 1 & 2, Game of Thrones - season 6. These take a while to check so I won't try to test the 150 seasons I have on Blu-ray.
My system is as follows.
UDP-203, Denon AVR-X1200W, Vizio M65-C1, Monoprice premium certified high speed HDMI cables."*
Oppo replied with
"We have logged your orders and will work on having the issues replicated in-house and resolved through future firmware releases.
OPPO Digital, Inc."