[1 - from Lucky Goldstar Electronics]
1.You have to cd-rw drive connect to secondary master alone.
2.Don't touch while F/ware upgrading
3.If it happen to problem when you upgrade to F/ware,it is that your responsibility.
Because of you are mistake F/Ware upgrade
Therefore you must be care for F/Ware upgrade.
[2 - from the manufacturer of my DVD drive]