Firmware Upgrade Version 2.0F
DRU-500A | DRU-500AX | DRX-500UL | DRX-500ULX

This new firmware...

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.


英文版的
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原網址
http://sony.storagesupport.com/dvdrw/firmware.htm#1