Hello, I just picked up a Roku Express (Canadian model 3930CA) and everything works well except for a little snag within the Plex app. I prefer to direct play/stream my files (everything I have is encoded in h/x.264 AVC format in .mkv, .mp4, and .m4v containers). When I play files that contain an AAC 2.0 audio stream, the video plays back fine. However, when I attempt to play a file that only contains surround streams that need to be transcoded to 2.0 (e.g. 5.1 DD or DTS) then the picture stutters.
The same thing happens when I disable direct play and use direct stream only, and when I disable direct stream and go into full transcode mode. When transcoding only the audio, the CPU never goes above 1-2% so it shouldn't be a problem with my PC or Plex.
My Roku Express is running OS 9.2.1. It's connected to my AC 5GHz wifi, and it's showing excellent signal strength. The files are a mix of 23.997 / 24 / 59.94 fps (nothing with variable frame rates) and mostly weren't encoded with more than 5 reference frames.
My only choices in Roku settings for Audio Mode are "Stereo" and "Auto (Stereo)". HDMI Audio correctly auto-detects that the TV is stereo.
I've searched through the postings but after going through everything above, the only thing I see left is to change an option that isn't on my Express model, i.e. changing the display refresh rate.
Has anyone else had this problem?
