From some v1.7x version Autoswitching from MEncoder (transcoding) to tsMuxeR (remuxing) when file was compatible was removed.
Try playing file directly from TRANSCODE folder, [tsMuxeR] engine if stuttering will disappear.viewtopic.php?f=4&t=15785
thanks for the answer, I know it can sound incredible, but I actually use subtitles, so my movies are most of the time transcoded. I do not suffer any stutter if I play DVD res movies, I most of the time can watch 720p movies. This happens only with 1.6 though, with 1.7 I have stuttering 100% of the time.
Anyway I have bought a pair of 500Mbps powerline sockets, let's see if the things improve