Hi
I just checked this out with a DVD export containing just an image and a menu and Yes.... The disc playback had a faint series of clicks at the start. (Although the menu refused to play the disc)
I extracted the VTS_01_1.VOB file and played this alone in VLC. There were obvious audible rapid "chugs" at the start of what should have been a silent clip. The result was the same if I exported an iso image of the project and extracted the VOB file in which case the noise was louder..
I checked this was actually on the clip by loading the VTS_01_1.VOB file back into VP........

Half a dozen quite loud audible "chugs" are present at the start of the "silent" audio track.
I have no idea why this is. Worth confirming this as a ?bug before notifying NCH
Later... after more testing...
Repeated this test with a single image and no menu and the DVD-RW played OK and the VOB file played OK without "clicks" showing in VP.
In the next test I created a simple menu with one button. The final burn to DVD-RW did not respond to the button which appeared on the menu screen and play the disc so, I again played the VIDEO_TS / VTS _1_1.VOB file from the DVD in VLC. The "chugs" were back. They would seem therefore to be associated with the menu. I think there may be a bug somewhere here. Wants checking.
Nat