Sony DRU500A FW [COLOR=RoyalBlue]upgrade 2.1A[/COLOR]
Firmware Upgrade 2.1A - Allows your Dual RW drive to record at 4X on 4X compatible DVD-/+R media. - Improves reading and writing performance and reliability. - Reduces vibration noise for the discs with unbalance or eccentricity. - Improves audio playback on written discs with stand alone systems. - Improves reading and writing performance with 8cm DVD-R/RW. - Increases readability with Recordable Double Layer Disc.