English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

6 answers

The data isn't actually on a face, but on a metalized layer inside the CD. The laser shines through the plastic and is reflected off the inner layer.

The metalized layer is visible under a bright light and you will be able to see concentric circles, which is the track that the information is "engraved" upon.

It's interesting to realize that a CD is much like an older LP record. All of the information is etched on a single track which winds from the middle to the outer edge of the disk. When disks are made en masse, the information isn't actually placed on the CD with a laser, but they are actually pressed, much like the older LP cousins.

2006-11-26 02:45:02 · answer #1 · answered by Deirdre H 7 · 1 0

If you flip the cd over you should see a purple-ish ring around the center of the cd. I can be anywhere from a thin purple-ish circle to a very broad circle ( almost covering the entire cd) depending on how much data is saved on the disc. This is the side that is placed face down when inserting into computer or cd player.

2006-11-26 10:46:25 · answer #2 · answered by msnewbootyislandqueen 1 · 0 0

They're located on the underside of a CD. This way any graphics and such can be etched or printed on top to make it more attractive.

FYI, the data to a CD is written from the inside out, unlike an old record. This way one can hold the CD by poking their finger in the middle of it, but the bare, clear plastic around the ring won't attract any oil from the person's finger.

2006-11-26 10:38:49 · answer #3 · answered by Eric B 3 · 0 0

The side : without printing, and shinier

2006-11-26 10:38:18 · answer #4 · answered by ckm1956 7 · 0 0

its on the side without the writing

2006-11-26 10:37:16 · answer #5 · answered by Cailu 2 · 0 0

the one with the information.
put the disc in i it says theres nothing there, flip it over and there you go.

2006-11-26 10:37:29 · answer #6 · answered by Helping Since 1969 6 · 0 0

fedest.com, questions and answers