Keep your memories safe for years to come with this M-Disc BDXL 100GB 4x Single-Sided Disc from Verbatim. This Blu-ray Disc has a capacity of 100GB, providing plenty of space for storing scientific images, video, and other data. With writing speeds of up to 4x, you'll be able to copy and store files quickly on these 100gb thermal printable discs. This engraving process renders archival grade discs practically impervious to environmental exposure, including light, temperature, and humidity. Based on ISO/IEC 16963 standard longevity tests, these BDXL Verbatim M discs have a projected lifetime of several hundred years.