Mine finally got here and it had the retail firmware too, just like yours. Did a bunch of test burns then flashed to most recent and doing some more. So far good quality for all media tested, not outstanding, but very good. I think it's like the earlier versions of the 1620 and should improve a bunch and get overclocking of media, But dolphinius_rex probably allready has the next version and will let us know or it will get public release soon after testing finishes. I miss the red flashing light when burning and the overclocking but I can wait for upgrades. My 1620 started out as a 1600 made in June 2004 and it still works great as a 1620 pro.