Sony today started shipping 50GB Blu-ray discs to the U.S.
A prominent backer of the next-generation media format, Sony shipped its first Blu-ray titles in June and has re-engineered the AccuCore technology used in its recordable DVDs to fit the high-definition technology. Additionally, Wednesday's announcement confirmed that Sony will ship rewritable Blu-ray media later this year.
The new recordable discs are dual-layer, meaning that a total of 25 gigabytes can be recorded on each side, and Sony estimates that they can hold about four hours of HD video. They will retail for about $48.