Ken - what you may not realize is that our Buyer's Guide, though assembled and laid out by us, is actually POPULATED by the manufacturers themselves. We leave it up to them every month to add/remove product info and while we try to double-check this as much as possible, some things get missed. Removing gear that is no longer available should definitely be a priority and I will double our efforts in that regard.
As far as the other data you asked about, I refer to my previous statement. We are essentially passing on the specs the manufacturers provide us with. Re: the chroma bug issue, we try to make a point to address it in each DVD player review we write. As a matter of fact, our own Manoj Motwani wrote a feature article about this annoying artifact just last year.