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Difference between Dual-Layer and Double-Sided DVD
Microboards DVD+R Dual-Layer 8.5GB Hub-Printable Media - White Everest - MEDD10005-CASE - DVD & Blu-Rays - CDW.com
50 Pack Imation DVD+R DL Dual Layer 8X 8.5GB DVD Plus R Double Layer White Inkjet Hub Printable Blank Media Data Movie Game Recordable Disc - Walmart.com