Re: .avi files on DVD player

Dave wrote:
<snip>
I have to agree with kill on this one, this player doesn't have any
limitations that I can see either. In fact, it appears to stick to
some pretty normal bit rates, or at least those within the specs of
what its meant for.

<snip>
The buffalo player also looks good too. If fact, its very similar
to
the JVC one, and the specs are pretty much the same.


Dave, thanks for commenting. While I no longer use the BuffaloLT, it
regularly plays MPEGISO of 12 mbps (the highest rate at which I
capture) and home-made xvid/mp3 at 2.192 mbps, as well as an 8 mbps
Divx sample available on the web (a Mars flyby sim, sorry URL not
saved). I've had other players which could not properly handle even
lower than the least of these rates. The JVC does address the 12 mbps
MPEG2 issue (though only via LAN?), but nothing higher - higher rates
are already offered by some capture devices. Some devices which
perform divx capture/conversions on-the-fly use 4 mbps (Pinnacle is an
example using 15 mbps MPEG2 and 4 mbps Xvid - not that it's a
standard). Snazzi may also use a higher bit-rate than the JVC
limitations but I've not read their specs yet. Hauppauge is
apparently supporting 15 mbps MPEG2 capture in non-US models.

My only points, in replying to Kill Bill, were:
1) I do not encode DVDs - I just burn to the media, therefore the DVD
specs do not pertain to the discussion
2) The near future of encoding in MPEG2 (and its varieties) and MPEG4
(and its varieties) way surpass the specs of the JVC player which we
are addressing.

Therefore, I say it has no future!

I used to encode two pass conversions at the MPEG4 (divx/xvid) rates
supported by the JVC, they do not play well (subjective opinion) on a
1080p monitor, while higher bit-rate conversions do. Since the JVC
seems to be addressing an audience with a desire for higher definition
playback (a la MPEG2-TS), it simply strikes me as disingenuous to
offer limited MPEG2 support and these piddling non-MPEG2 rates.

BTW, as an experiment I ran two 640x480, letterboxed DVD movies thru a
2 pass, de-interlaced, xvid conversion using maximum motion precision,
widest quantizer limitations, and a limited max iFrame interval of 60.
The videos chosen were "Hunt for Red October" and "Crimson Tide." The
target video bit rate was 2 mbps. The image was cropped to its actual
size. These are the same specs I use for some HDTV captures, even
though they are captured via S-Video. There is little or no
perceptible difference in quality between either of these conversions
and a DVD of the same brightness levels when scaled to full image on a
1080p monitor. Most remarkable are the underwater images, as there is
no stair-casing of the water and shadows. I was especially pleased in
that the letter-box DVDs, which the Buffalo handled poorly, could be
discarded! Conversion with these parameters takes a tad more than 6x
play time on a 2gp4-512 single core processor using multiple 7200 rpm
HDDs. The HDTV captures via S-Video, when run thru the same process
certainly rival DVD, though are noticeably less sharp than the
original HDTV. Perhaps skipping the de-interlace is worth a try.

According the JVC's spec sheet, these could not be played on its NEW
player. They do play on a BuffaloLT and a LiteOn 2001. A Philips 642
will play the video but can not maintain audio synch. (for any who
have the P642, pressing the REW key once resynchs the sound with
little impact on continuity).



.

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