Probally like with the plextor drive they give a rough first impression and then later update the stuff so they can claime to be worlds first.
I've said this many times know maybe I should start doing reviews based on piece of media so I can be ultra fast and be worlds first.
Also it states the following in the conclusion:
Note here that this is a preview of the DW1655 and a complete set of tests and burned media, as well as its LS capabilities will be updated soon, so stay tuned.
Then why label it big on the site as review and mention in the conclusion that it's actually a preview still.
Really the current focus on being first is making me