[cmdr.adama]

What kind of your 29.970Hz BDs are? Are they interlaced video? Could you switch the output to 1080i 60Hz if they are and try again?

The BDs are usually Music Concerts with 1080i59.94. But the stuttering also occurs with the Pendulum test which is available in a thread in yur vidon forum. This pendulum test uses 1080p29.97.Why you don't use it?

I tried to switch to 1080i60 with no succes. The automatic frequency switcher switches back to 1080p60.

Can you tell us some names of the Music Concerts, so that we can play some of these BDs on the VidOn Box to find out the reason and fix the bug.
We may add an option to let users switch the output frame frequency manually.

I can't find the thread which contained the information about stuttering and test pattern anymore! I think you deleted the thread in your forum where users posted information about video stuttering, e.g. with 29.970/59.940 Hz. There were links to download video test patterns with different framerates.

Maybe you can recover the deleted threads in your forum to get the test pattern or you can ask your forum users to post the information again.

To give you a feedback on your request. All concert movies I tested with 1080i60 were suttering. Therefore it would be easy for you to find some. I also saw stuttering with 1080p25/i50 either after some chapter jumps or already at the beginning. One 1080i50 movie was not just stuttering but also had completely asynchronous audio output. I am sure that the stuttering doesn't depend on progressive or interlaced movies! It occurs for both 1080p29.970 and 1080i59.940 movies! You would see it if you could use the test pattern.