Sony will exit the business of making optical drives for PCs, another sign that traditional PC design is fading.
Japan-based Sony is getting out of the optical disk business as part of its restructuring effort, according to a Japanese-language report in the Asahi Shimbun.
A similar report appeared in Japan's Yomiuri Shimbun.
About 400 people, both domestic and overseas, will be offered early retirement, the reports said, adding that the move is coming in the wake ofposted earlier this month.
Sony is aiming to close its Sony Opitarc optical disk division by March of next year.
Traditional PC design is under assault from tablets and a new wave of ultrabook laptops that are too thin to accommodate an optical drive and typically eschew standard spinning hard disk drives in favor of solid-state drives.
And this trend is expected to accelerate with Windows 8, when companies like Microsoft, Hewlett-Packard, Lenovo, and introduce tablet-laptop hybrids that are a departure from traditional PC designs.
When contacted by CNET, a Sony corporate communications representative in Tokyo said the reports are "basically correct," adding that Sony Optiarc in Japan employs about 90 people, while there are around 330 employees in overseas affiliates.