DVD successor from Toshiba
The Japanese Toshiba group is already working on the successor to the DVD. The potential successor will be presented at the CES computer trade fair in Las Vegas, which begins tomorrow. The storage capacity should be 30 GB per side and medium.
To achieve these high values, Toshiba works with a blue Laser that has a wavelength of 405 nanometers and captures the data on the 12 cm diameter disk. A new recording method (Groove and Land) and PRML (Partial Response Maximum Likelihood) signal processing should be able to safely store up to 30 GB per side on the medium. The currently common DVD-RAM only have a capacity of 4.7 GB per side and medium, Toshiba assumes, however, that the required storage capacities will increase with the introduction of digital television. The new technology is to be submitted to the DVD forum as a proposal for a new standard.