Journey From Video Cassettes To DVDS

Video cassettes were actually a medium that could store different videos and sounds. Video cassettes are 4 inches deep, 1inch thick and a little more than 7 inches wide clamshell made of plastic. 5 screws hold them together. They have a cover. This cover guards the tape. These video cassettes have a long tape. This is actually a magnetic tape where all the videos and sounds are stored in the form of a coded message. When it is inserted in the player, then the player decodes those messages and plays the cassette. In this article we will discuss the journey from video cassettes to DVDs.

A Japanese company called Victor Company of Japan made the first video cassette in 1976. This company is betterly known as JVC. That time it was not that much popular. But after 1990, this system became very popular. Various companies started making video cassettes at this time. Companies like Sony and Philips became pioneers in making them.

The sound and picture quality was pretty good. But one problem was that the storage capability was quite limited. The tapes also were very sensitive. The user had to take good care of them. If somehow the tapes got torn, then the whole cassette became useless. The player also needed to be neat and clean. The tapes easily got tangled up in an untidy record player.

As time passed, these cassettes started becoming obsolete and VCDs replaced them. VCD means Video Compact Disc. VCDs do not consist of any tape. They use a compression standard, which is called MPEG. This system is totally digital. V.C.D can store up to 800 Megabytes of data.

But VCDs are also becoming obsolete nowadays. DVD is the latest addition in the world of digital formats. It consists of a laser diode, whose wave length is 650nm. DVDs have got a writing speed of 1350 KB per second.

DVDs are mainly of five types. They are single sided, double layer; single sided, single layer; double sided single layer; double sided dual layer on both sides; and double sided, dual layer on one side, single on one side.

DVD has many advantages. They have a big storage capacity. It is many times bigger than CDs or Video cassettes. The picture and sound quality of it is extremely fine. DVDs last for a long period of time. Unless there is any scratch on them, they can go on and on. Nowadays even scratched discs are no problem for the listeners. There are many players available which support the scratched ones.

This disc can play both audios and videos. There are some of them which only play audio files. Others can play both of them. Writing a movie on a DVD is very easy. You just need a writer. Just because the storage capacity is better in here, you do not need to buy two blank DVDs, as in the case of CDs, to write a full cinema. A full film can be stored in just one disc.

There are many popular brands like, Sony, TDK, etc. These brands will offer you good quality DVDs at reasonable prices.

About the Author

Victor Epand is an expert consultant for used DVDs, used movies, and used car stereos. You can find the best marketplace for used DVDs, used movies, and used car stereos at these sites for Video cassette, DVD, VCD, magnetic tape , used movies, and used car stereos.

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