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Attribute: DVD+R -R
Capacity: 4.7GB/120Min
Speed: 16X
Packing: 50 pieces in bucket
The performance of Verbatim products has unparalleled superiority in high-quality technology. As a pioneer in this industry, Verbatim has always played a pivotal role in the early development of products and the commercial transformation of new technologies. Especially in the development of optical storage media technologies, such as MO, CD-R, CD-RW and DVD, it has been playing a leading role. With the rapid development of science and technology, Verbatim has always adhered to the principle of quality first
What is the difference between DVD+R and DVD-R?
To talk about the difference, let’s talk about the history of DVD discs first, so that everyone can understand why DVD discs have +/- points.
In 1997, Pioneer of Japan released a DVD burner. The price was as high as US$35,000 at that time. Thinking about the current price, everyone is still very happy. The disc used by this recorder happens to be a DVD-R. The disc was designed in accordance with Pioneer''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s DVD-R specification version 1.0. The design storage capacity was only 3.95GB at that time. At the end of 1999, Pioneer released version 2.0 of the DVD-R specification. At this time, the design storage capacity has reached 4.7GB. -R is supported by the DVD Forum (DVD FORUM, leading manufacturers including Pioneer, Toshiba, Sony, Sharp, and Samsuang), and in its BOOK D released, it has made detailed regulations on the specifications of the -R format.
Interest issue(Royalties and other issues), Resulting in disagreements among manufacturers with technological advantages. 2001 autumn and winter season, Philips, the Netherlands(Philips)The company has successively released the +RW and +R formats, which have been approved by the DVD Alliance led by Philips, Sony, Ricoh, and HP(DVD Alliance)support.
The reasons of interest have led to more topics for DVDR discs than CDR.
At present, based on the information I have, DVD+R and DVD-R have major differences in the following aspects:
1. Different specification makers
From the historical introduction above, you can see that I won''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t say more.
2. Different addressing modes(Mainly due to structural differences)
DVD-R uses low frequencies(140.6kHz)Swing groove(wobble)Time, the addressing depends on the addressing information pits pre-engraved at the bumps. This kind of addressing method has poor signal recognition. When the multiple speed is high, addressing is difficult to obtain. Therefore, -R high-speed recording will be relatively difficult.
DVD+R uses high frequency(817.4kHz)Wobble groove time, addressing is achieved by using the phase modulation of the wobble groove at the pre-groove track. This method has better signal resolution than -R, and the mastering process is easier than -R, which conforms to the +R alliance The so-called easy high-speed recording, easy production and so on.
About wobble: The wobble or jitter of the guide rail is called wobble.
3. The required masters are different.(There is generally no difference in dyes)
4. The production process is different
After the DVD-R is formed, it needs to be pre-written with a dedicated pre-writer(Everyone often hears about -R cable disk). DVD+R is not required.