Aleratec 370103 BD-R 6x Duplicator Grade Blu-ray Media - 10 Pack (Discontinued by Manufacturer) 25GB capacity, more than 2 hours of HD video 6x write speed, up to 10x write speed when being used with Aleratec stand-alone Blu-ray/DVD/CD LightScribe Duplicator Duplicator Grade - designed to provide best results when used with Aleratec duplicators Standard Silver