AFAIK dvbcut doesn't support even non HD h264 streams (I just tried to open H264 .mpeg file saved with Me-TV from DVB translation in Lithuania), so, don't expect HDTV support soon :(
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
AFAIK dvbcut doesn't support even non HD h264 streams (I just tried to open H264 .mpeg file saved with Me-TV from DVB translation in Lithuania), so, don't expect HDTV support soon :(