I have 3 VIDEO_TS folder, differents sort clip with those folder,i want dvd video with all video_ts folder, can i rename this video_ts folder when i put those file to make iso
Welcome to the forum
To “merge” some different clips into a single DVD disc, you need a dvd suthoring software. If you don’t care about menus, DVD Shrink is one of the best options.
If you want also to create some custom menus, adding chapters or remove unwanted segments, then you need a software like TMPGEnc DVD Author or DVD Lab Pro (too bad both are not free).