Archived from groups: alt.tv.tech.hdtv (
More info?)
Phil R. (screenname@domain.com) wrote in alt.tv.tech.hdtv:
> >> >MyHD will also play DVDs in spectacular fashion,
> >>
> >> How so? Aren't I getting the best picture possible playing the DVD
> >> through PowerDVD/WinDVD on my monitor?
> >
> >Well, first your monitor isn't 42" diagonal, right?
>
> No.. but I have friends who do and I can tell you that the resolution
> on my monitor is far superior than their 42" HDTV.
For standard DVDs, I'm sure that even an EDTV has far more than enough
resolution. I have no problem sitting 5 feet away from my 38" set and
watching DVDs (although that's closer than I normally sit) even though
it has less resolution than my computer monitor. But, from 5' away, it's
a lot bigger.
Basically, the extra resolution of HD is mostly wasted on a small monitor,
even if it can display full HD resolution.
> >Second, the scaler in the MyHD card is very, very good, so you can watch
> >DVDs at 720p or 1080i on a big screen.
>
> How can a DVD output at 1080i? I thought the highest resolution is
> around 680p/720p?
>
> I see. But how does AnyDVD up-scale the DVD?
OK, you seem very confused.
MyHD can play back DVDs as long as they aren't copy-protected. It can
output the DVD video at any "standard" resolution (640x480/60i, 640x480/60p,
1280x720/60p, 1920x1080/60i, 852x480/60p, plus about 8 more). The problem
is that only about 1% of commercial DVDs have no copy protection. This
is where AnyDVD comes it. It is a driver that makes every DVD look like
they aren't copy-protected (because AnyDVD removes the copy-protection on
the fly).
Now, up-scaling DVDs has some advantages. With a good scaler, you can
improve the quality by "filling in" between pixels that actually exist on
the DVD. This makes them appear to have a higher resolution than they
actually have, which is very important when you are viewing on a 40"+
display.
Up-scaling the DVD while still in the digital domain has even more
advantages. Doing the scaling inside the DVD player is even better,
because then you have access to *all* the MPEG information.
Software DVD players can also do this, but they have several drawbacks:
- most have lousy scalers (ZoomPlayer is an exception)
- getting the output to anything but a computer monitor is tough
- calibrating the output correctly (black level, contrast, color) isn't
easy
--
Jeff Rife | "Space. It seems to go on and on forever. But
| then you get to the end and a gorilla starts
| throwing barrels at you."
| -- Philip J. Fry, "Futurama"