DVD Format Standard

DVD disc has its own standard on recording and burning. Do you know the standard of DVD video format and audio format that accept in DVD disc? In order to gain a deeper understanding of the DVD, you can just refer to this article which just introduces the DVD format standard for you in details.

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DVD Format Standard

The standard of DVD format can be divided into two part, DVD video format standard and DVD audio format standard. The contents below just introduce these two kinds of DVD format standards departed.

DVD Format Standard - DVD Video Format Standard

Because of the impetus from the eight major studios, the performance of DVD Video is shown for the film service. It takes the MPEG-2 standard (ISO/IEC13818) to compress the video for the reason that this standard has the following two significant parameters: the screen resolution of 720 × 480 and bit rate comes up to 1M to 10Mbps.

Compared with the VCD's 320 × 240 resolution with MPEG-1, the MPEG-2 used by DVD increased more than fourfold in the resolution. Besides the resolution, the amount of data also increased. The sound quality has also improved and reached the 24 bit/96kHz standards. What's more, this DVD video format standard also supports plug-in subtitles and channel, enjoy from multi-angle, and many other digital control functions. For all these reasons, the broadcast data traffic surge in unit time. The original VCD data traffic is only 150Kbytes/s (about 1.15Mbps), while the peak value of the DVD now reached 10Mbps.

DVD Format Standard - DVD Audio Format Standard

The old-fashioned DVD does not provide the decoding on AC3 and DTS. The task is always done by a special amplifier. So once you use an old old-fashioned DVD player to play the DVD disc nowadays, there would be no sound. The DVD players sell in the electrical stores now are comes with the words "double decode" which refers to the decoding of the voices encoded in AC3 and DTS.

AC3, as the traditional audio standard launched by DOLBY Laboratories is specifically designed for the cinema. Pioneer cooperated with DOLBY improved the AC3 standard and made this audio standard can support up to 5.1 channels. The standard of AC3 data traffic (audio bit rate) is 384kbps. And AC3 is also compatible two-channel stereo and mono. AC3 two-channel bit rate is only 128kbps, which is actually the data rate of MP3. The AC3 with the highest standard, which rate at 448kbps, is widely used as a audio storage standard for DVD movies simply because of its reasonable compression and small volume.

That's all about the standard of DVD format. Hope this can help you much to gain a deeper understanding of the DVD.

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