bobmitch, thank's great.
With my PX-716UF I burned a just under 8GB feature in approximately 18 minutes at 6x right out of the gate.
I used these: Verbatim Discs .
They are the only discs available locally to me from the local Wal-Mart. They are now $20US for 3, down from $30 for 3 a few months before. No DVD-R DL seen here yet.
Just FYI to all. Happy burning.