Chapter Marker for layer break on dual layer verbatum DVD-R DL freeses up video at that point. used all options still freeses. The suggestions Architect gives me stll freese the video. Have 02:32:15:10 on the timeline for the full video. Have 32 chapters in the single title menu video rendered in MPEG 2 . Architect suggested anywhere between 01:16:07:600 and 01:26:36:400. I've tried one at 01:23:00:00. and a couple of other spots in that range as well as Automatic. Didn't reprepare the file after automatic. Have seen a complicated formula on Cow. Didn't go there. Is DVD Architects Auto maths up the creek or is there some geek out there can tell me the answer.