Please read instruction
https://sony.storagesupport.com/cdrw/downloads/crx85u/fw_manual/85Uupdate.html
What's New:
Enhancements made by this Firmware Update include the following...
* Supported media added
* DVD read speed performance improved
* Fixes ATAPI error "AA030C08" that occurs during write operation
* Whole writing performance & reliability improvements
* Other fixes
https://sony.storagesupport.com/cdrw/downloads/crx85u/fw_manual/85Uupdate.html
What's New:
Enhancements made by this Firmware Update include the following...
* Supported media added
* DVD read speed performance improved
* Fixes ATAPI error "AA030C08" that occurs during write operation
* Whole writing performance & reliability improvements
* Other fixes