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Chinese engineers develop 200TB optical drive – 100-layer super DVD could be the first step towards exabyte data storage, but challenges still exist

In an effort to meet the ever-growing data needs, a team of Chinese photonic engineers has developed a high-capacity optical drive that can hold up to 200 TB of data. The team’s groundbreaking work, published in Naturehas the potential to revolutionize storage technologies, especially in data centers where space is at a premium.

Traditional DVDs, used for storing movies and data, have a capacity of 4.5 GB – enough for about two hours of video. Data is written onto the surface of the disk using a laser to etch a series of ones and zeros. However, TechXplore reports that this new technology, developed by the Chinese team, takes a completely different approach.