The SH-S202, real 20X DVD writer, supports powerful over speed performance, which allows writing with the high speed of 20X on a low cost 16X media. It features real 20X recording speed in the market (average less than 5 minutes for full writing on DVD+R). Intelligent detection of media type, error-free reading of all medial types increases life of the drive. Samsung DVD Writer is able to write on Double Layer DVD, which means you can write up to 8.5 Gb