Note that the site you referenced never actually claimed that they were sellig DVDs.
Considering that they have the rather cryptic message
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">D9 products are 99% competible with zone 1 North American DVD players.</font>
, it would not surprise me if what they were actually selling is VCD's. These are MPEG-1 videos that are on CD media as opposed to DVD (which uses MPEG-2 at a much higher resolution and bit rate). Since most DVD players (including consumer models, not just those in computers) will also play a VCD, their statement above would be accurate if they were in fact selling VCDs. Although a single VCD will hold over an hour of video, it's nowhere near the quality of what a DVD offers.
By the way, VCDs have been used in Asia for video piracy for many years, well before DVDs were even available. The infrastructure to manufacture VCDs in quantity is no different than that required for audio CDs, as from a manufacturing standpoint, they are identical media. Also, anyone with a computer and a CD-R can create VCDs, whereas a DVD requires a DVD-R drive.
Although they never were popular in North America, Asia has had VCD players (or combo audio / VCD players) that sold as home audio/visual components for many years. Assuming you had one of these players hooked up to your TV, it was as easy to play a pirated VCD as it was to play a VHS tape in the US. Now that most people in the US have DVD players, we can now also play VCDs. Although there's no reason that VCDs can't be used to distribute licensed content, I've never seen a VCD for sale that didn't contain pirated content.
[This message has been edited by Steve M (edited 09-15-2002).]