Sony Develops Single Optical Head for Blu-ray Disc, DVD and CD

Sony has successfully developed a single three-wavelength optical head, capable of recording and playing next-generation Blu-ray Discs, as well as conventional DVDs and CDs without requiring an extra optical head for backwards compatibility. The technology requires less parts, is cheaper to produce and provides full backwards compatibility with current DVD/CD formats. Sony will target commercializing the newly developed optical head within 2 years, and will positively promote to further technology development. By doing so, in addition to further reducing the number of parts used for achieving smaller size of optical heads, enhancement of productivity and reliability will be achieved.