If you look a bit further down there's two different sets of scores for hdmi and component on both machines, they say of the 2910:
"The Denon 2910 is the entry level player of their upper line. If you look at it in comparison to the 1910, they are really worlds apart. The 2910 has the build and features of an upper end product. These features include both HDMI and DVI outputs and full DVD Audio and Super Audio CD support.
The 2910 is similar to the 3910 in many ways. The 3910 ups the ante in terms of power supply, shielding, and audio performance, but the 2910 is tugging at its coat tails. This is definitely an improvement in some ways compared to the popular DVD-2900, but it gives up a little too.
The DVD-2900 was what I call the Ferrari of DVD players. Mainly because it may very well be the fastest DVD player on the planet. Menu and chapter navigation were instantaneous, and layer changes were completely seamless. This took usability to a whole new level. Because the 2910 uses the Genesis solution, it sacrifices a lot of this. Evidently, the Faroudja processing is too much for the buffers, because navigation is considerably slower than the previous design. Layer changes are also clocking in around a second, which isnt bad, but it isnt the 2900.
The plus side is this player comes with full digital video support and upscaling, which the DVD-2900 lacked. Denon is the only manufacturer on the market right now that is including both DVI and HDMI on one player. This is a huge plus, since the RGB conversion most HDMI players do when you connect them to a DVI based monitor is getting screwed up. Essentially they are converting to PC RGB levels and not the intended Studio RGB levels which allow for dynamic range in the blacks and whites that PC levels dont allow. The only downside I could find with the Denons digital video output was a lack of 480i support via HDMI. This is a feature I would like to see more of from DVD manufacturers as it allows for an unprocessed digital signal for an outboard video processor.
The video performance de-interlacing wise is identical to Denons upper end offerings such as the DVD-3910 and DVD-5900. The MPEG decoder doesnt seem to be quite as good as the ESS offerings in the upper line. This decoder had severe 4:2:0 CUE issues that were so bad that the Faroudjas chroma filters couldnt get rid of them totally. The same went for the 3-2 alternating CUE test. There were obvious banding and flicker even with the Faroudja filters engaged. This was not the case with the 3910.
The other tests went fine. Black levels were dead on, and the white level measured out at an excellent 101 IRE. The video frequency response was pretty flat, though not quite as good as their upper line of players, which was expected. Y/C delay was perfect at absolute zero via all outputs. Pixel cropping measured out 10 pixels combined for left and right and none on top and bottom.
Using the digital outputs rendered the same results. There was some pixel cropping, which also seems to be a byproduct of the Faroudja processing, as it goes away without it. Macroblocking is still an issue but is toned down in comparison to the DVD-5900. This continues to be a problem for any player that uses the Genesis FLI-23xx chips. Hopefully Genesiss new line of chips will remedy the problem or hardware manufacturers will look elsewhere for de-interlacing and scaling support.
The black levels via HDMI and DVI were accurate and offer the choice of Studio (normal) or PC (enhanced) RGB levels. Again, studio RGB levels are the correct setting and allow for below black and above white information. This is easy to test for with a gray ramp such as the one found on Avia Pro or Digital Video Essentials.
Denon did not support its Denon Link or Firewire outputs on this player, which is unfortunate. I would have liked to have seen at least one supported since the HDMI output is not the new generation that supports DVD-A.
Overall this is another solid offering from Denon and currently the most recommend unit of their line below the DVD-3910."