What is HD DVD

HD DVD or High Definition Digital Versatile Disc is an optical disc of high density. The fundamental objective is the storage of data and the high definition video. The disc was primarily designed by Toshiba and was brought up to the DVD standard.

Toshiba however denied manufacturing the DVD HD player for any longer in February 2008. Let us take a look on some of the details regarding the HD DVD. The encoding of HD DVD are VC-1, H-264 and MPEG-2. HD DVD does have the capacity of 15 GB in single layers and 30 GB in dual layers. The disc developed by DVD forum has the reading mechanism of 1*36 M/bites and 2*72M/bites.

It is derived from the technologies same as underlying DVD. Having the maximum capacity of 15 GB per layer (the blue layers are employed to store data by nearly all the variants) it has the 3 ¼ times much storing efficient then the formers. This makes us remember the competition of VHS and Bet Amax wars during late 1970s and early 1980s. It had a format war with Blue Ray Disc to determine the more efficient for carrying the higher for carrying the higher definition content to the consumers.

Earlier in 2008 the high definition optical disc war came to an end when Toshiba withdrew the format manufacturing. That also allowed its rival, the Blue ray to acquire the dominant position for high definition video discs.

The promotion group dissolved on March 28, 2008. The entrance of the commercial HDTV sets in a larger market began in mid 1990s. However the recording or playing back of the HD content was too expensive. The storage medium that could store the data was also not very cheap. Only JVC, s VHS and Sony’s HDCAM were there to serve.

When the Blue Lasers Diodes were invented by Shuji Nakamura. Even though the commercial introduction was delayed by a lengthy patent lawsuit.

UDO and DVR Blue together with Pioneer were the two projects applied by Sony a format of re-writable discs which had to become BD_RE. The nine initial members founded Blue ray disc association as it was announced as Blue ray in February 2008. Initially the avoiding of the mishandling of the consumers required a protective caddy. The prototype caddy was expensive as well as physically different from DVD. That assisted Toshiba and NEC to announce their competing standard advanced optical disc in August which was finally adopted by the DVD forum and renamed as HD DVD next year.