Here I'll show you the steps of DVD burning. 1  Add videos to DVD Burner. 2  After loading source video files, you could select subtitles and audio tracks from source videos, play back videos, etc. 3  Set disc menu (optional). 4  DVD burning settings.
Woodworkbykirk is right. I would go with the 11.25'' treads if you have the horizontal space, and a landing would be ideal. Australian code requires a maximum of 18 straight risers before you need a landing at least 4' in length, but I consider this extreme if you have room for an intermediate landing.
1 (c) (1) The rise of every step in a stairway shall be not less than 4 inches nor greater than 7 1/2 inches. ( 2 f) ... There shall be not more than 12 feet vertically between landings.  So, there could be as many as 36 4-inch (minimum) steps in a 12-foot (maximum) flight of stairs. In the kind of doubled-back flight of stairs typically seen in a multi-storey stairwell, each flight is probably going to be between 8 and 10 steps, depending on the floor spacing.