DVD-R Full Form

DVD-R stands for Digital Versatile Disc Recordable . DVD-R is pronounced as “DVD dash R.  It is 120 mm in diameter and 1.3 mm in thickness, comprising two poly-carbonate substrates of 0.6 mm each . It is supported by most DVD players and is approved by the DVD Forum, which was founded by Apple, Pioneer, Mitsubishi, Hitachi and Time Warner . The DVD-R format was developed by Pioneer and was released in 1997

DVD-R can be used to record data. Once DVD-R has been written to, it cannot be written to again. Data is written to on disc by a laser. DVD recordable uses dye to store the data. During the burning of a single bit, the laser’s intensity affects the reflective properties of the burned dye. By varying the laser intensity quickly, high density data is written in tracks.

Characteristics of DVD-R

  •  DVD-R is most common DVD writable formats and supported by most of the DVD players.
  •  DVD-R can store 4.7 GB on single sided, single layer discs and 8.5 GB on dual layer discs while 9.4 GB on double sided discs .
  • DVD-R uses “land pre-pit” method to provide sector address information .
  • DVD-R can be written to only once and read arbitrarily many times .
  • DVD-R uses dye to record data

Advantages

  • Can be used to store large amount of data .
  • Available in different storage sizes to increase flexibility.
  • It has a broader playback capacity than DVD+R .
  • Supported by most of the DVD players .
  • DVD-R do not have to be formatted before being recorded.
  • It is less expensive than DVD-RAM and DVD-ROM.

Disadvantages

  • Can be written to only once . 
  • DVD-R is not able to locate data by byte accuracy.
  • High failure to read chances due to differences in the reflective properties of dye .
My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.



Improved By : pp_pankaj

Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.