new: support for enhanced MPEG-2 meta info (stopped transcoding)
fix: some titles wouldn't work in partial-copy/original menu mode; enable nested hidden playlists.
fix: video preview may stop transcoding
fix: memory corruption led to crashing
fix: allow more changes of LPCM configuration between clips
fix: AVC/MVC parser errors
fix: HEVC encoding of 3D clips
minor fixes and improvements