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DVD Secrets

According to experts, the DVD will be out of use after 3-4 years. But before you write off the current standard, you should understand the intricacies of its development, technical features and capabilities, drives, as well as submit the heir to the hero of this article.

DVD Features

The DVD format was officially announced in September 1995. The first drive that supports DVD-R recording was released by Pioneer in October 1997, its cost was $ 17 thousand. Crazy money! At the same time, 3.95 GB DVDs cost $ 50 each.

The first years of the DVD was a luxury item. Time passed, and now DVD technology has become much more accessible. Both at the price of disks, and at the price of drives. Today, a DVD burner is the norm, its average price does not exceed 1.5 thousand rubles.

Why is this format so good? The main advantage of DVDs is obviously a large amount of media, because one DVD is at least 4.7 GB (dual-layer and double-sided DVDs contain twice as much data — 8.5 GB). At the same time, the average price of a single disk is about 20 rubles. DVD has no competitors in terms of price and capabilities.

It is worth recalling that the volume of a standard CD-ROM is only 700 MB, in modern conditions it is negligible. At the same time, the cost of storing information on DVD media is lower than the cost of storing the same amount of information on CD media. Thus, you can not even remember about the CD format. Interestingly, according to statistics, about 60% of the music purchased on a CD is subsequently copied to the hard drives of personal computers. Those. even music CDs are slowly becoming a thing of the past.

Modern DVD drives are versatile and work with discs that can be both rewritable (DVD ± RW) and write-once (DVD ± R). Many users are interested in what determines the speed of writing to disk? Several factors play a role here: the type of drive, its brand, format, and technical capabilities of the disc.

The speed of the drive is indicated by numeric indices with an “x” at the end (for example, 1x, 4x, 8x, 16x). These figures are based on the speed of the very first DVD drives: the data transfer rate of a single-speed drive is 1350 Kbps. In turn, the 16-speed drive works at a speed 16 times higher, that is, 21,600 Kbps.

As for the brand of drive, you should pay attention to products from well-known manufacturers: Asus, LG, NEC, Plextor, Samsung or Teac.

LightScribe and Labelflash Technologies

When choosing a drive is worth remembering that the DVD can be applied to the image of its non-working surface. The technology of laser marking on the surface of the disc is called LightScribe. With it, you can apply a color photo, vector drawing or an inscription on the surface of the disk. For this technology to work on a PC, in addition to a compatible DVD-drive, it is necessary to install system software that will provide support for this technology. In addition, the disc itself must support LightScribe.

Another technology for capturing DVDs and pictures is called Labelflash. It resembles LightScribe, but is not compatible with it. Unlike LightScribe, on Labelflash discs, the drawing surface has a dark blue color that is lightened by the laser. For drawing a disk with a special coating is required.

Types of DVD drives

Drives are of two types: internal (Internal) and external (External). The internal drive is inserted into the standard 5.25-inch bay computer system unit. The external drive has its own housing and power supply for connecting to the electrical network. External drives are most often used as a supplement to a laptop that does not have its own optical drive. Connection in most cases occurs via the USB interface. Today, with the advent of netbooks, external drives are becoming more popular than, for example, a year ago.

Types of DVD-discs

DVD-ROM – used only to read information from them.
DVD-R – you can record information on these discs only once.
DVD-Dual – dual-layer discs, capacity 8.5 GB.
DVD-RW – these discs can be rewritten.
DVD-RAM – rewritable discs, recording and reading from which can go simultaneously. Capacity – 4.7 GB.

Programs for writing

The most popular and well-known disc recording software among Russian users is Ahead’s Nero Burning Rom. Today it is a multifunctional software package for recording and creating CD and DVD images, which also include a backup utility, an audio file editor, and programs for creating and printing disc covers. The most frequent deliveries of the Nero program come in the form of OEM packages, which are usually attached to most CD and DVD recorders.

But if Nero or a similar program does not appear, you can always use the free utility that is part of the operating system.

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