what is the difference between DVD and CD?
Answer:
DVD means Digital Versatile Disc (technically speaking) or Digital Video disc(For non tech persons).DVD stores 4.7 GB of data which can be Audio and video. DVD Audio only disc can also made.
CD means Compact Disc. this disc can store upto 700Mb data, this disc can be used as audio cd, video cd, Mp3 cd and also as a data disc.
But mostly people used to call Audio CD as CD.
DVD and audio cd is of the same size. A DVD shows you a movie whereas a Cd plays a song The space they hold. A DVD could hold 4.7GB, while CDs can hold roughly 700MB. ? A DVD can hold data (music or video or any other form of data) of size about 4.7 GB whereas CDs can hold around 700 MB. In other terms a DVD is nearly 7 times larger in capacity than a CD though the size of the discs are same.
A DVD has a much compressed format which enables it to hold to such huge volumes of data. well a DVD can hold a maximum of around 4.7GB (for a single layer DVD)... a double of dual layer DVD can hold upto 8.5-9GB data...
also a DVD is divided by the manufacturer into zones... which means that a DVD which belongs to a certain zone cannot function in another and cannot be simply be copied on a diff zone disc... helps curb piracy... the world is divided in aroung 7 to 8 diff zones...
and a CD on the other had can hold merely a max of 700MB data...
also a CD does not have a zone labelling system...
i buy DVDs of all zones.. it sounds expensive..
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