CDfreaks.com reports that Sony has released a firmware upgrade for their DRU-500A and DRX500UL, currently the only drives that are able to write both DVD+RW as DVD-RW discs. The new firmware has the following benefits: This new firmware will allow your Dual RW drive to record at 4X on 4X compatible DVD+R media as well as improve the DVD-ROM reading performance with DVD recordable/rewritable media. We expect this firmware to be released on or before December 9th, 2002. Please check back on this site then to download and install the firmware. We anticipate that 4X compatible DVD+R media will be commercially available later in December.

Sony Dual RW Firmware Upgrade 1.0e

CDfreaks Forum Thread on Sony Dual RW Firmware Upgrade 1.0e