The summary is:
The video is about LightScribe, a technology that allows optical drives to burn labels on the top side of CDs and DVDs. The narrator explains how it works, what are its advantages and disadvantages, and why it didn't become very popular. He also mentions some alternative methods of direct-disc labeling, and some trivia about LightScribe discs.
Here are some key facts extracted from the text:
1. LightScribe is a direct-disc labeling technology developed by Hewlett Packard and first released commercially in 2004.
2. LightScribe used existing optical drive technology to burn monochrome images onto the label side of optical media, either CDs or DVDs.
3. LightScribe enabled optical drives are pretty much identical to any ordinary CD or DVD burner, except for a small scanner that allows the drive to see the rotational position of the disc.
4. LightScribe discs have a special coating on the top surface that gets darker when it is heated by the laser.
5. LightScribe discs also have a barcode ring between the spindle hole and the writable portion of the disc, which encodes information about the label surface and helps the drive align the image properly.
6. LightScribe labels are created by following a spiral path from the inside boundary to the outside edge of the disc, and the time it takes to burn a label depends on the range of the radius that is being used.
7. LightScribe labels can be made in different quality settings, such as draft, normal, and best, which affect the burn intensity and resolution of the image.
8. LightScribe labels have some limitations, such as low contrast, slow speed, alignment errors, fading over time, and susceptibility to wear and heat.
9. LightScribe was officially discontinued by HP in 2013, but some software and support are still available from lightscribesoftware.org.
10. LightScribe had some competitors, such as DiscT@2 and LabelFlash, which also used optical drive technology to create labels on discs, but they were less popular and had more drawbacks.