This is a 10-pack of 100GB BD-RE XL discs compatible with 4K, capable of recording 720 minutes. - Brand: SONY - Model: BD-RE XL - Capacity: 100GB - Pack Size: 10 Pack - Recording Time: 720 minutes - Features: 4K compatible Thank you for viewing. SONY has stopped producing Blu-ray discs. High-performance, made-in-Japan discs are becoming difficult to obtain. With 100GB, you can easily fit 26 episodes of a 1-hour drama series in LSR mode. It's also convenient to compile your favorite detective series onto a single disc, saving space. You can record over 6 hours of precious videos taken with a 4K camera onto a disc via a recorder. This is useful for events like sports days. Thank you.