How does a CD or DVD burner produce submicron lines separated by submicron distances?
Those photographs show mass-produced disks that are pressed in a mold to produce the physical quarter-wave pits. The machine that makes the "stamper" (the inverse metal pattern) is a very high precision device. It is economical to use only if you're planning to make thousands of identical disks.

Disks that are writable in a consumer drive use very different technology that involves either dyes or phase-change materials that alter their reflectivity in response to the writing laser. Such disks have a guide groove molded into them that is used to guide the laser in much the same way that it's done during reading.

In other words, a consumer drive does NOT have the ability to put a laser spot in a completely arbitrary X-Y location with sub-micron precision. It can only place it in a position along a predetermined path.