Andrea, keep on reading !! Still reading the new manual, it is not clear to me what are the "hard
edges" that are created with the "blade cuts". How do they differ from normal edge edits? What are “hard edge marker toggle" and how are they used?
When you position the insert marker on the timeline, and key in a single x, that is a blade cut in the traditional sense and you see a green colored triangle on each side of the cut at the bottom of the video. These triangles are the "hard edge marker toggle". The blade cuts differ from normal edge edits in that they do not get optimized back together. So if you "blade cut" out frames and later add them back to the exact same spot, it will not be optimized so it will still look like there are several edits. There are probably some other nuances too, but I will have to ask GG later to find out for sure. He has been busy for the last 3 days on seeing if he can get a patch submitted to Xorg for the long standing xft font problem that he has had to carry a patch for Cinelerra. About optimization, here is a previous email quote that should go into the manual too: "Cinelerra has built in optimization on the timeline. So that whenever two parts on the timeline are sequential frames, it automatically optimizes by making them into 1 item (excuse me if I am not saying this quite right). So if you are cutting, dragging, editing, or whatever and somehow frame # 40 ends up right next to frame # 41, it optimizes them together. This optimization is sprinkled all over the code."