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Xbox Media Center is awesome, but not quite HD

As you may have guessed already, I’m in love with my Xbox Media Center (XBMC). It’s a great media center for watching downloaded content. But even-though it’s pushing out a 1080i picture, the adage holds: Garbage in, garbage out. Although in this case, it’s more like recycling.

Most of the TV you can download out there are 350MB per half hour, multi-pass encoded in the Xvid codec. They look great, they sound great, but they don’t match the high-definition coming through the air or cable company. Even though they may be labelled “.hdtv.avi”, they have been encoded down from a high-definition MPEG2 down to an MPEG4. If you look at the true HD rips floating around out there, they are 4GB per hour. So despite Xvid being a great codec, picture information is being lost.

Here’s a look at the same scene, from the same show (’Lost’), on the XBMC vs. a Scientific Atlanta HD-PVR. Both screenshots were taken from a paused screen at almost the same timecode (you try pausing within a millisecond ;) ) with a Canon Powershot SD30 on a Sharp Aquos 32″ HD LCD TV.

Xvid on XBMC
'Lost' on Sharp Aquos via Xvid and XBMC

HD TV on Scientific Atlanta PVR
'Lost' on Sharp Aquos via Cable HD

As you can see, there is a fairly big difference. This is a pause, so you can’t see the motion effects. But differences in clarity and colour are pretty easy to see.

The sharpness just isn’t there in the Xvid. Look at the details of the woman’s face, and the stairs behind her. The Xvid is blurry whereas the HD has the clarity you have come to expect on a modern TV.

Also, check out the buttons on the woman’s jacket. In the HD you can see they are all gold/bronze, whereas the Xvid shades them each very differently (some even look green).

Although the Xbox Media Center is great for streaming downloaded (Xvid) videos to your TV, if you are used to high-definition television, you can’t get rid of your cable company or HD-tuner quite yet ;)

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This entry was posted on Sunday, April 1st, 2007 at 12:09 pm and is filed under Science/Technology. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “Xbox Media Center is awesome, but not quite HD”

  1. Jon says:
    July 28, 2008 at 11:36 pm

    This looks to be more of a resolution issue then anything else.

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