SONY 50GB BD-R DL 11 discs x 5 packs = 55 discs 4K compatible 50GB BD-R DL discs, ultra-high-speed dubbing in 8 minutes for 1 hour 11-disc pack allows for high-quality recording. ● Brand: SONY, for single recording ● Capacity: 50GB / BD-R DL ● Pack Quantity: 11 discs x 5 packs = 55 discs ● Usage: Recording / DATA ※BD-RE (DL 50GB) RITEK brand: Panasonic MID code We will provide a free sample of 5 discs (2,398 yen). Please compare and try it with the discs you purchased. Thank you for viewing.