2006-10-30 14:38:26 · 5 answers · asked by curb 1 in Consumer Electronics ➔ Other - Electronics
DVD media has atleast 7 times the capacity of CD media. For example a typical blank CD can hold 700 MB of data, a blank DVD can store 4.7 GB of data.
DVD technology writes in smaller 'pits' (non-reflective holes) to the disc than CD technology. Smaller pits mean that the drive's laser must produce a smaller spot.
Additionally, DVD tracks are closer together, allowing more tracks per disc. These narrow tracks require special lasers for reading and writing — which can't read CD-ROMs, CD-Rs, CD-RWs, or audio CDs.
Most drive makers have solved this problem by putting two lasers in their drives: One for DVDs, the other for CDs.
2006-10-30 14:51:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A CD will hold up to 700 Mb of data. This data can be CD audio, mp3 files, or any other files copied from your computer. A DVD single layer disk can hold about 4.8 Gb of data, including everything I mentioned a CD can hold. A Dual Layer DVD can hold about 9.6 Gb of data, which includes a full length feature movie.
2006-10-30 14:48:39 · answer #2 · answered by keithe524 2 · 0⤊ 0⤋
no longer something you will be able to desire to tell by way of potential of watching a disk...yet DVD's have plenty greater potential, and you are able to watch video clips and so on on DVDs... CDs are basically for music. the two can keep documents like computing gadget documents and documents backups on your computing gadget
2016-12-28 08:37:39 · answer #3 · answered by ? 3 · 0⤊ 0⤋
a cd holds music (such as a .mp3)
a dvd holds movies or things you can watch
2006-10-30 14:43:30 · answer #4 · answered by liviaomgwtf. 4 · 0⤊ 0⤋
cd=compact disc
dvd=digital video disc
2006-10-30 14:46:24 · answer #5 · answered by nick_lupro 3 · 0⤊ 0⤋