This mode is designed to copy all the content of a DVD-9 disc (movie, menus, extras) onto two DVD-5 single layer discs at 100% Quality. It does this by splitting the longest title by chapters onto both discs. Other content is distributed between the two output discs as space, structure and user options permit. There are checkboxes in the lower left (see illustration) that control menu placement and force Disc1 or 2 to jump to the title that was split as soon as it is inserted in the player.

The amount of data on the two output discs can be varied by changing the split chapter using controls at the top of the window. Clicking on the box containing the split chapter number will cause a drop down selector to be displayed that you can use to vary the split to put more or less of the movie on each output disc. The disc sizes in the small display windows in the lower right will update as this is changed. The range of split chapters available will vary from many to few (or none in some cases) depending on the size of the movie files and the user settings you have chosen.