Difference between CD and DVD

CD stands for Compact Disc was the primary step towards the thought of digital coding of the info. It uses a novel methodology of coding within which a 14-bit code indicates a computer memory unit and this coding technique conjointly helps in error detection. it had been an acceptable replacement for the memory device because it offered the low-priced answer for storing a big quantity of knowledge. DVD stands for Digital Versatile Disk provides another for the videotape utilized in tape recorder (Video container Recorder) and fixed storage utilized in computer because the videodisc will acquire seven times larger quantity of the info relative to CD. It renders videos with wonderful image quality and random access. A videodisc is constructed from a similar material because the CD however the method and therefore the layers area unit completely different, it's used from each of the edges like 2 CDs area unit projected along. In DVD, RS-PC and EFMplus are used as the error correction codes. There are few differences between CD and DVD, which are given below: