lightscribe
When burning individual compact discs(CDs) or DVDs, labels are printed for the inscription, which are centered on the label side and glued on. With Lightscribe, a process developed by Hewlett Packard, the label is burned directly into the label side.
In Lightscribe technology, the Lightscribe-capable blank, which has a light-sensitive surface layer on the label side, is inserted upside down into the burner after the burning process and the label is burned in with a second laser. Lightscribe technology therefore requires special compact discs( DC) or DVDs, a special Lightscribe burner and Lightscribe software.
Lightscribe recorders are identified as such by the Lightscribe logo, as are Lightscribe blanks, which have a bar code in the center for centering. Marking is done with laser light with a wavelength of 780 nm in the color of the blank. The burn-in process for the inscription proceeds in a spiral by burning the light-sensitive layer and takes about 15 minutes. The contrast of the marking can be increased by repeated burning-in. Congruent burning-in is ensured by bar code centering.
Another process that also uses a laser to mark the blanks is Labelflash, but this is not compatible with Lightscribe.