3-pack of BD-RE XL discs for repeated recording, 100GB capacity, 4K compatible. - Brand: SONY - Model: BD-RE XL - Capacity: 100GB - Pack Count: 3 Pack - Usage: For repeated recording - Compatibility: 4K - Number of Discs: 3 discs SONY's high-performance, durable 100GB BD-RE discs are becoming less common. They work perfectly with SONY recorders, and I haven't had a single error in 10 years. I don't own other brands, so I'm a SONY loyalist with BRAVIA, recorders, and Xperia. I trust Japanese-made products. The specifications are currently the best, and my impression of using them is that they have a white label, so you can create a clean label on a computer. They are durable for repeated recording. It's good that they become completely blank when initialized. I don't often do partial deletion, but there are no particular problems, and the capacity is restored by the amount deleted. With 3 discs, you'll have plenty of space for backups of programs during the New Year's holidays. Thank you for viewing. Best regards.