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what resolution is HDTV in Japan? in Korea?

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KanpaiOffline
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PostPosted: Sat Aug 18, 2007 8:52 pm    Post subject: what resolution is HDTV in Japan? in Korea?   Post Rating: 0 Reply with quote

In the USA, HDTV broadcasts are mostly 1280x720. What is the native resolution of HDTV in Japan? in Korea?

I'm just curious because I see files being upload with different resolutions... 1280x720, 1024x576, 704x396. Which of those is the "native resolution" of the broadcasts? or does the resolution of the file just depend on the video card used to capture the broadcast?

Thanks!


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XrayMind
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PostPosted: Mon Sep 03, 2007 3:00 am    Post subject:    Post Rating: 0 Reply with quote

First off, Korea use the same ATSC for transmission of HDTV. So I guess the Korean broadcasters can transmit up to 1280x720. Japan use a different standard to transmit the actual HDTV signal. Since they also use MPEG2 to compress the video and they had the same refresh rate in the analog days, they how has the same refresh for digital. So guess what, Japan's resolution are the as the US.

Just the people who encode videos choose to make the resolution lower to save on size, you get something lower than 1280x720.
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KanpaiOffline
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PostPosted: Tue Sep 04, 2007 12:48 am    Post subject:    Post Rating: 0 Reply with quote

thanks for the response XrayMind.
and thanks for all your uploading too! salut
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Gummi BearOffline
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PostPosted: Thu Sep 13, 2007 6:46 pm    Post subject:    Post Rating: 0 Reply with quote

I feel really stupid asking this but I burned ep 1-4 of Nodame Cantabile 1280x720 using Nero. I got a Sharp Aquos 1080P LCD 52" (just bought it a few days ago) and when I try to watch it I got a message saying HD not supported. Does that mean I can't watch any Avi files that have such high resolution unless I buy a HD box?? I am totally clueless to this HDTV thing!

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XrayMind
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PostPosted: Fri Sep 14, 2007 9:04 pm    Post subject:    Post Rating: 0 Reply with quote

You need you tell me which input you are your LCD TV. I don't think the Svideo(round one with pins) and composite(yellow round one) inputs will not take HD signals. Only the components(3 round red/green/blue), HDMI(small flat D), or, if you are lucky, DVI(same as newer video card output).

Second you need to tell me what is playing the 1280x720 video files? If it's standalone DivX/MP4 player like the ones made by Philips, then most of these standalone player only support resolution up to 720x576@25fps or 720x480@30fps. Since I know the Nodame video file is 30fps, so standalone DivX player will not work.

BTW, I am send HD video from computer to my HDTV thru the component port of my ATI video card. Also I could have got a DVI/HDMI cable and my HDTV act as a second monitor to computer.
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Gummi BearOffline
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PostPosted: Sat Sep 15, 2007 3:40 am    Post subject:    Post Rating: 0 Reply with quote

I saw 5 terminal inputs at the back, out of the 5 there are 2 that are HDMI inputs.

What is playing the files is my Toshiba DVD/DivX player. So I think that's the culprit then, it can't play such high resolution files (sigh). Thanks for your help XrayMind!

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PostPosted: Sat Sep 15, 2007 4:00 am    Post subject: Re: what resolution is HDTV in Japan? in Korea?   Post Rating: 0 Reply with quote

Kanpai wrote:
In the USA, HDTV broadcasts are mostly 1280x720. What is the native resolution of HDTV in Japan? in Korea?

No, in the USA as well as Japan (not sure about Korea, but I think it is the same) the standard these days is 1080i (1440x1080nonsquare pixels or 1920x1080square) as a matter of fact I've never seen a 720p OTA Japanese broadcast.

All those 1280x720 files are reencodes of the original TS file to make it easier for everyone to watch since its easier to reproduce and distribute, a 1hour 1080i TS file could be around 9GB depending on the bitrate.

Good read if you are interested...
http://en.wikipedia.org/wiki/High-definition_television
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thomodachiOffline
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PostPosted: Sat Sep 15, 2007 4:29 am    Post subject:    Post Rating: 0 Reply with quote

gummi bear, your TV is 1080p meaning it supports resolutions up to 1920x1080. That is the highest possible out there! You have the best possible HDTV.

The HD error you are getting is not related what resolution your TV is, but rather how you encoded the file. Don't burn with nero. I recommend burning DVD's with a program called ConvertXtoDVD, it can convert almost any movie files to DVD and it does it properly. It's very easy to use, just drag and drop your movie and click one button.
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XrayMind
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PostPosted: Sat Sep 15, 2007 4:46 pm    Post subject:    Post Rating: 0 Reply with quote

thomodachi wrote:
The HD error you are getting is not related what resolution your TV is, but rather how you encoded the file. Don't burn with nero. I recommend burning DVD's with a program called ConvertXtoDVD, it can convert almost any movie files to DVD and it does it properly. It's very easy to use, just drag and drop your movie and click one button.


I am pretty sure that ConvertXtoDVD will down covert the HD video to DVD resolution. Highest DVD resolution again is 720x576@25fps or 720x480@30fps. This program is not call CovertXtoHD-DVD nor ConvertXtoBluRay.

Anyway, the cheapest solution is either hook ones computer to the HDTV or, from what I read, Apple TV does support resolutions up to 720p. You then either have to covert the files to MP4 or hack it to play DIvX/XviD files.
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Gummi BearOffline
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PostPosted: Sat Sep 15, 2007 6:18 pm    Post subject:    Post Rating: 0 Reply with quote

@thomodachi, I have been trying to avoid converting avi files to DVD b/c of the 1ep/disc ratio. It takes up too much space! Thank you so much for trying to help !


XrayMind, actually my computer is already hooked to another HDTV Mr. Green
Right now its hooked to my Sony Bravia. I can watch Nodame Cantabile from there fine, the picture quality is really beautiful. The Sharp Aquos is actually in my bedroom, I was just testing the picture quality of the Sharp so I put in NC to test it and thats how this whole mess started.

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thomodachiOffline
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PostPosted: Sat Sep 15, 2007 11:43 pm    Post subject:    Post Rating: 0 Reply with quote

Quote:
I am pretty sure that ConvertXtoDVD will down covert the HD video to DVD resolution. Highest DVD resolution again is 720x576@25fps or 720x480@30fps. This program is not call CovertXtoHD-DVD nor ConvertXtoBluRay.


Wow, such a hostile response to a person who's trying to help, but it's not like gummi bear will play it back as HD-DVD or Bluray anyways. He/She mentioned above that they only have a DVD/divx player so what is the point keeping it as HD video?

And FYI, these avi files that you guys are downloading are already down-converted when compressed with divx. They are no longer true HD video anymore.

Quote:
@thomodachi, I have been trying to avoid converting avi files to DVD b/c of the 1ep/disc ratio. It takes up too much space! Thank you so much for trying to help !


Well guess what? This program will allow you to drag as many episodes you want onto and burn it as one disc! That is the beauty of it. It automatically resizes the video files to fit on your DVD or DVD9 disc. Of course the down-side is the more episodes you put on one disc, the more the program has to compress the video resulting in lower quality. Well, I can't say I tried guys.
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XrayMind
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PostPosted: Sun Sep 16, 2007 5:10 am    Post subject:    Post Rating: 0 Reply with quote

I don't know how you read that I was responding hostilely to your respond. Gummi Bear was trying to avoid down converting those HD video files to DVD resolutions. I mean, if you got a 1080p HDTV, why would anyone download the HD video files just to down convert them. Could of just downloaded the the smaller 704x396 versions and play them on the Toshiba DVD/DivX player, which I am sure he/she already did. I was trying to make a funny comment with the ConvertXtoDVD name. Maybe I should added a smiley to it.
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thomodachiOffline
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PostPosted: Sun Sep 16, 2007 5:42 pm    Post subject:    Post Rating: 0 Reply with quote

Yeah, smileys do lighten the mood sometimes. Smile
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itsukiDOffline
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PostPosted: Sun Sep 16, 2007 9:11 pm    Post subject:    Post Rating: 0 Reply with quote

does anyone know if there are any dvd players capable of playing divx files over the 720p standard? cuz that would totally help gummi bear out, considering that he/she has an aquos, I dont think money would be an object.

another way to go is this little gadget here:
http://www.pixelmagicsystems.com/products/media_players/hd_mediabox.htm
High Definition video file playback with HDMI?output
Watch WMV9, MPEG 1/2/4, XviD and DVD (.iso/.vob) files
External subtitle support and 10 user profiles of picture control
Multiple output resolutions up to 1080p and SXGA (1280?024)
Audiophile playback of popular music formats
Aluminum alloy cooling technology, no fan noise
Supports internal IDE hard disk up to 500GB (disk not included)
External USB 2.0 hard drive support
Network interface for playback of media files stored on a PC or NAS*
High speed USB 2.0 port for media file transfer to/from PC
Backlit remote for navigation in dark environments

its expensive, even without a hard drive ($450), would've liked a wireless networking solution. I know there are affordable similar devices out there, but most of them do not support HDMI.

well good luck.
D
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shirohamadaOffline
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PostPosted: Sun Sep 16, 2007 9:54 pm    Post subject:    Post Rating: 0 Reply with quote

keh, i joined just for this thread -_-'

when you have 1080p tv you really don't want to reencode to lower res dvd. it WILL look horrible. and even horrible if you compress it too much. yes, there's standalone player for mpeg4 that supports HD stuff, but as itsuki said, its way too expensive. for the same money you could build a HTPC.

get amd, since its cheap and more power efficient. specifically, athlon x2 BE2350.
get a micro atx board with onboard graphics. specifically, Biostar TA690G HDMI. yes it has onboard hdmi and dvi. amd chipset should be more power efficient than nvidia's.
look for small and slim case. yes i am building one, thats why the specifics ;P
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