CD

You’ve probably got quite a few CDs in your collection — but how do these shiny do-dads work? In this BrainPOP movie on compact discs, Tim and Moby teach you the basics of CD technology! Discover how music is recorded on CDs in binary code, a sequence of ones and zeroes. You’ll also learn how CD players use lasers to read this sequence and decode it into music, and how CD-ROMs and DVDs use technology that’s remarkably similar. So take off your headphones and get ready for a compact lesson on CDs!

Watch the Technology movie about CD »