This is a pack of 11 100GB 4K-compatible BD-RE XL media discs, allowing for high-quality recording. - Brand: SONY - Model: BD-RE XL - Capacity: 100GB - Quantity: 11 discs (10 + 1) - Application: For 4K rewritable recording With a total capacity of 1100GB, you'll have plenty of space for repeated recordings, and it should last for 10 years. Made by the renowned Japanese brand SONY, which is no longer in production. It's a shame because they work well with SONY Blu-ray recorders. The white label allows you to create beautiful original discs using label software like Label-Mighty. Thank you for viewing. Best regards.