The reason is that developers like on the one hand most of developments in the dvd production to reduce production costs as disk drives and drives. On the other hand, it was decided to try to get by without a cartridge designed to protect information in the case of reducing the thickness of the protective layer disc. Recall that the first disc Blu-ray format were initially packed into special cartridges precisely because of the reduction of six times the thickness of the protective layer. And only was later developed a special particularly tough coating, allowed to abandon the cartridge. All hd dvd drives are backward compatible with both dvd, and a cd. ‘Fat’ protective layer and then helped to simplify, or rather – to borrow from ‘standard’ dvd, the mechanics of the drive, as the requirements for the positioning of the laser and optical system are significantly lower than for the blu-ray. For ‘soft’ transition to the new format proposed hybrid drives.
A consumer buying a disk, has the opportunity to view it as an ordinary DVD-player, and get higher quality the same movie when you buy in the future, players hd dvd. It was proposed two options for hybrid drives. First – combo disc. This double-sided disc, with one part of which is recorded in video format, dvd, and the second – hd dvd. The second option – twin disc. This single-sided disc that can hold up to three layers, which are closer to the laser layers (one or two) can be read by a laser and red contain standard video dvd. ‘Distant’ same layers (two or one) intended to read the blue-violet laser, include hd dvd information. End of the last format war or start a new one? As we have said, 19 February 2008, Toshiba (), not Desiring to further maintain the ‘so-called next generation format war’, has officially announced the termination of work on the further development and promotion of the format hd dvd. Blu-ray won? Well, even at first glance not so simple. Firstly, are former “comrades” on the format – nec and Sanyo. Secondly, Toshiba promises to provide support to users already ‘involved’ in-use format. Third, and most important, research in the field storage of large volumes unabated, threatening in the near future “to make blu-ray the same rarity as well as vinyl records.” Multilayer (up to 50 layers!)
Drives to the effect of fluorescence pit, holographic media information, development of solid-state memory – and this is just technology, details of which leaked out of the laboratories. A possible transition to solid-state memory instead of optical discs is not so unlikely, because of its revolutionary spirit. This has happened more than once. Enough to remember the transition from vinyl records to laser disk or a transition from floppy disks to USB-Flash drives. High-speed solid-state memory today is already used in professional video production. This SxS pro memory cards from Sony or P2 from Panasonic, used by them in their professional hdv camcorders format. However, while these cards are too expensive and hardly overtake dvd in volume – the maximum of their capacity is 16 gb. But also the first laser discs with a diameter of 120 mm had a capacity of 650 mb, and today on the optical disk of the same area can accommodate up to 200 gb of information.