Blu ray DVD LG

The high def­i­n­i­tion DVD disk is capa­ble of stor­ing 30GB of infor­ma­tion even after using its both sides and on the other hand the stor­age abil­ity of blu-ray disk reaches 50GB (25GB per side). The cur­rent CD and the DVD tape for­mat use the red lazer for read­ing and record­ing the infor­ma­tion onto the disk. Wave­length of DVD is 650nm and that of the CD disk for­mat is 780nm. Wave­length has been reduced fur­ther in the new disk tech­nol­ogy of blu-ray which was intro­duced by Philips and Sony. Wave­length of blu-ray is 405 nanome­ters. The rea­son to use blue laser in the blu-ray for­mat is its shorter wavelength.

Blu-ray tech­nol­ogy is able to record large vol­umes of HD sound and videos as well. Color of the lazer used in blu-ray tech­nol­ogy is some­what blu-violet with wave­length shorter that red lazer. The most pow­er­ful advan­tage of the blu-ray disc for­mat in com­par­i­son to the nor­mal red lazer is its capa­bil­ity of record­ing more data vol­ume keep­ing the disk sizes same as the CD and DVD disk size. The pic­ture qual­ity is also clearer with vivid­ness and sharper col­ors as well. Spot size required by the blue-lazer is also smaller. Pickup aper­ture of blue lazer is 0.85 nanome­ters. Den­sity of the blu-ray disk is very high that helps to fit 25GB data on each side of blu­ray disc mak­ing total stor­age of 50 GB.

Blu-ray tech­nol­ogy is the opti­cal stor­age format’s new future. The advan­tages and ben­e­fits pro­vided by the blu-ray disk tech­nol­ogy are far beyond that of the DVD for­mat. Blu-ray tech­nol­ogy sup­ports large record­ing capac­ity (25GB) on same phys­i­cal size disk as of the DVD disk. So it makes it 50GB when data is stored on both blu-ray disks’ sides (as 25GB for each layer). HD video is sup­ported by the blu-ray tech­nol­ogy with the help of mod­ern encoders. Video (1920 x 1080p) is sup­ported with VC-1, ACV and MPEG2 cod­ing schemes. Higher video qual­ity is enabled by the VC1 and ACV with lower bit-rate in com­par­i­son to the com­mon MPEG2 encoder.

The lat­est audio encoders are sup­ported by the blu-ray disk tech­nol­ogy that includes the DTS, Dolby True-HD, DTS-HD and Dolby Dig­i­tal (multi chan­nel). These audio encoders on the blu-ray disk can be uti­lized for up to eight audio chan­nels (7.1). Enhanced inter­ac­tiv­ity (Java based) along with inter­net con­nec­tiv­ity and com­mon menus (DVD like) are also sup­ported by the blu-ray disc tech­nol­ogy. An open plat­form is pro­vided by the blu-ray for­mat for the Java writ­ten con­nected and inter­ac­tive appli­ca­tions. It is very much clear that at the end of the high def­i­n­i­tion DVD and blu-ray disk for­mat war, the opti­cal disk format’s future is the blu-ray tech­nol­ogy. Games can also be played using the blu-ray disk play­ers and are also capa­ble of sup­port­ing the online sim­ple games because of their enough horsepower.

Blu-ray disk for­mat along with more capac­ity pro­vides new inter­ac­tiv­ity level as well. Blu-ray tech­nol­ogy pro­vides easy con­nec­tiv­ity to the inter­net and helps the users in instant down­load­ing of sub­ti­tles and other com­mon fea­tures of movies as well. With blu-ray tech­nol­ogy the con­sumers can record HD-TV with­out any dete­ri­o­ra­tion in the qual­ity and can skip right away to any spot on the blu-ray disk. One pro­gram can be recorded while another pro­gram is being watched on the disk.

For online order of blu­ray disk, Sony blu-ray, blu­ray record­able DVD, TDK blu-ray, Ver­ba­tim blu-ray, Max­ell blu-ray and Ima­tion blu-ray please visit ‘tape4backup.com’