DatalifePlus DVD-RW 4.7GB Pack Size: 1 Minimum Bulk Purchase: 50 x 1 packs (50 total)Case: Jewel Case Speed: 4x 4x DVD-RW recording speed (version 1.2) Re-recordable up to 1,000 times Super Eutectic Recording Layer optimises read/write performance and durability Superior Archival Life Lifetime Warranty Weight: 4.50 Kg