Melody 600 pcs Wholesale BD-R Blu-ray Recordable White Inkjet Printable Blank Disc, 25GB, 1-4x, Packed in 50 Cake Box Spindle Retail Pack. Disc Format: BD-R, Capacity: 25GB, 1-4x Disc. Compatible with most of Blu-Ray Writers / Burners and BD recorders. Write Speed: 4X Max Media Id : INFOMER30 White inkjet printable top surface Quantity: 600 pcs pack