600pcs Gigablock DVD-R 16x White Inkjet Hub Printable Studio quality grade Brand: Gigablock Media Type: DVD-Recordable Blank Media, Write-once format DVD Top Surface: White Inkjet Hub Printable (Full Face, no Groove) Storage Capacity: 4.7GB / 138 minutes (depend on user) Packing type: 50pcs x 12 = 600pcs