Page 1:Double-Layer Recordable DVD's Place In History
Page 2:Double-layer: The Latest Technology
Page 3:How Does It Work?
Page 4:BenQ DW-1600A
Page 5:LG GSA-4120B
Page 6:Lite-On SOHW-832S
Page 7:Test Configuration
Page 8:CD Read Tests
Page 9:Single-layer DVD Read Tests
Page 10:Double Layer DVD Read Tests
Page 11:CD-R Burning Tests
Page 12:CD-RW Writing Tests
Page 13:Single Layer DVD Writing Test
Page 14:Double Layer DVD Writing Test
Page 15:DVD-RW And DVD+RW Burning Tests
The DVD (Digital Versatile Disc) is worthy of the name. That is because it allows for storage of different data formats (video, computer data, music, etc.) and accepts various formats in order to adapt itself to the contents, while retaining its physical shape, that of a 4.5" (12 cm) platter.
Depending on the way you want to use a DVD, there are several subfamilies of this type of medium:
In addition to these subfamilies, the DVD format uses various standards to define the quantity of recordable data. There are four such standards.
|Capacity||4.7 GB||8.5 GB||9.4 GB||17 GB|
|Duration in video mode||2 hours||4 hours||4 hours||8 hours|
So far, standards other than DVD5 were reserved for DVD video and DVD-ROM, in other words, for pressed DVDs. All of that is now changing with the advent of DVD9 in the field of recordable DVDs.
The true revolution thus lies in the switch to double layer. For video DVD, this increases the capacity from 4.5 GB to 8.5 GB. That's pretty revolutionary, especially considering that when the first DVD burners came out more than two years ago, the manufacturers claimed that double-layer technology would be impossible to implement. The major research work was performed in the field of blank media. In fact, virtually nothing has changed as far as the burner hardware is concerned - the optical heads are the same. Only the firmware and part of the burner's electronic card has changed so that it can accept the double layer and additional error correction required by this technology.
- Double-Layer Recordable DVD's Place In History
- Double-layer: The Latest Technology
- How Does It Work?
- BenQ DW-1600A
- LG GSA-4120B
- Lite-On SOHW-832S
- Test Configuration
- CD Read Tests
- Single-layer DVD Read Tests
- Double Layer DVD Read Tests
- CD-R Burning Tests
- CD-RW Writing Tests
- Single Layer DVD Writing Test
- Double Layer DVD Writing Test
- DVD-RW And DVD+RW Burning Tests