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Posted by Gene on 02/14/07 17:57
My gut feeling is that you are correct.
However, I really would like to see the two
DVDs I described burned & played side-by-side.
There is nothing like getting a report from someone
that actually owns said camcorder type.
I have a real hard time seeing the difference in
some of this stuff, when played back on a 1080i TV.
I agree that there are differences in quality, but I
(and the folks watching TV with me) have a real hard time
seeing some of the quality differences in some
audio & video DVD-Rs.
It really boils down to how much you care ~ a percent or two
in A/V quality, IMHO. That is, non-critical home video, vs.
the masterpiece with which you are trying to impress your boss:-)
Gene
"PTravel" <ptravel@travelersvideo.com> wrote in message
news:53gvi0F1spcjsU1@mid.individual.net...
>
> "Gene" <genes@wildblue.net> wrote in message
> news:4FGAh.10$jP3.76876@news.sisna.com...
>> If anyone has something similar to this:
>> Sanyo VPC-HD1A
>> http://www.steves-digicams.com/2006_reviews/hd1a.html
>> are you happy with it?
>>
>> ~85 minutes on a 4GB card does not sound
>> that bad. 16GB should be out there eventually.
>>
>> Wonder if the A/V quality of the 720p is comparable
>> to my current MiniDV, when both are burned to a DVD-R
>> at max quality? That is, if you make a 85 minute DVD-R
>> of each at its best possible recording mode, which
>> DVD-R of 85 minutes would be the better quality when
>> played back on a 1080i TV?
>>
>> If I could get comparable DVD-Rs from this camcorder,
>> the conversion from flash to DVD-R should be really
>> easy on a PC with a flash reader. Kind of like the
>> set-top conversions should be, but are not, at least
>> for me. (Too many freezes with my Sony camcorders
>> and firewire.)
>>
>> The lens on these little camcorders look a little iffy to me,
>> just not sure how they could give the same quality
>> as my old Sony PC100 with wide angle lens, etc?
>
> Standard definition DV-25 (what you get from your miniDV camcorder) has a
> data rate of 25 mbps, using non-temporal compression at a rate of 5 to 1.
> DVD-compliant mpeg (what is used on your DVRs) has a maximum data rate of
> around 10 mbps, and uses temporal compression at a rate of 10 to 1 or
> more. High definition HDV (what you get from the prosumer high def
> camcorders) uses mpeg2 compression and also has a data rate of 25 mbps.
> These cameras have minor, but ocassionaly noticeable, motion artifact
> issues. AVCHD (what consumer HD camcorders use) uses mpeg4 and can, in
> theory, have a data rate of 25 mbps, but as implemented is limited to
> between 12 and 17 mbps. These cameras exhibit major motion artifact
> issues.
>
> Thes Sanyo has a data rate of 9 mbps, roughly 2/3s to 1/2 of the consumer
> HD data rate, and roughly 30% of the data rate of a prosumer HDV
> camcorder.
>
> YMMV but, to me, it's a toy for people who don't know better. It
> certainly isn't going to produce video comparable to an AVCHD machine
> (and, to me, AVCHD quality is unacceptable), and won't approach a HDV
> machine (which, to me, is acceptable, but just).
>
>
>>
>>
>> *********** cut-n-paste************
>> The HD1a can record over 21 minutes of 720p
>> HD video on a 1GB SD card or over 42 minutes
>> on a 2GB card and is compatible with the newer
>> 4GB size cards for even longer recording.
>> You can record in Standard Definition mode
>> (640 x 480 pixels at 30fps progressive) for up
>> to two hours on a 2GB SD card. It's easy to
>> switch between high-definition and standard-
>> definition recording modes by simply pressing
>> the "HD/Norm" button on the side of the camera.
>> *************************************
>>
>> Gene
>>
>>
>>
>
>
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