就算將來推出4K嘅載具都係用Blu-ray，但相信現時無一部Blu-ray Player可以讀到4K Blu-ray，
因為4K嘅編碼好大可能係用H.265，現時未有機可以解到。
一啲4K Re-Master嘅舊片就好似一啲K2HD、Blu-spec CD咁都係離唔開現時CD/Blu-day嘅格式限制，
而4K只係一個籠統嘅叫法，真正嘅UHD除咗4K解像度外(4096 * 2160 / 3840 * 2160) 重有係個色域係行REC.2020而唔係依家行實嘅REC709
睇睇下面幅圖，外面嘅黑線係UHD嘅standard色域REC2020而入面黑線係現時FULL HD嘅色域REC709，睇下大幾多。
http://upload.wikimedia.org/wikipedia/commons/thumb/2/27/CIExy1931_Rec_2020_and_Rec_709.svg/476px-CIExy1931_Rec_2020_and_Rec_709.svg.png
The Rec. 2020 (UHDTV) color space can reproduce colors that can not be shown with the Rec. 709 (HDTV) color space. In coverage of the CIE 1931 color space the Rec. 2020 color space covers 75.8%, the digital cinema reference projector color space covers 53.6%, the Adobe RGB color space covers 52.1%, and the Rec. 709 color space covers 35.9%. Rec. 2020 allows for frame rates up to 120 frames per second (fps).
現時4K TV就好似早年嘅HD Ready電視，過往買過非Full HD(720P)電視嘅朋友應該有呢類經驗。
但當然就算唔係UHD standard都好，現時4K電視/projector嘅影像一定有非常好嘅表現，
因為出得4K一定係旗艦型號。
reference
http://en.wikipedia.org/wiki/Ultra_high_definition_television
just my 2 cents.
ilavbnm 發表於 2013-6-19 12:52 static/image/common/back.gif
貓哥無理由唔捧場o既...
sony喎...莫講話屯門啦...沙頭角都應該去啦......
我真係想去架，不過個日咁岩約左fd去睇中大畢業展，唔知睇完趕唔趕到黎{:6_168:}
本帖最後由 frankiepoon 於 2013-6-19 14:11 編輯
ilavbnm 發表於 2013-6-19 12:46 static/image/common/back.gif
規格上BD可以做到4層...容量最高可以去到128G
不過...規格歸規格...實際是否可行&兼容性如何?
真係要等業 ...
3層100GB BDXL既碟同支援既燒碟機一早出左啦:
http://www.techbang.com/posts/4142-pioneer-first-bdxl-bdr-206mbk
Pioneer BDR206-MBK Blu-Ray BDXL Writer
US$165.99
http://www.amazon.com/gp/product/B004P2Y7MQ/
TDK Blu-ray Disc - BD-R XL 100GB 4X Speed 1 Pack Printable - Triple Layer
US$45.00
http://www.amazon.com/TDK-Blu-ray-Disc-Printable-Triple/dp/B0041CJMRU/
BDXL既錄影機日本仔已經玩左好耐:
http://techcrunch.com/2010/11/03/panasonic-announces-more-affordable-bdxl-blu-ray-recorder/
本帖最後由 frankiepoon 於 2013-6-19 14:03 編輯
bigair 發表於 2013-6-19 12:18 static/image/common/back.gif
4K係2K既 4倍，一般普通BD 20-25G，3D要多一倍，差唔多要50G，咁4K咪要80G - 200G，我諗BD未必裝到 ...
我記得之前AVS Forum既Editor話Sony部4K Player入邊既4K Amazing Spider-man係56GB到~
當然係一條Video+HD Sound啦, 而家出既4K Mastered都包兩條HD Audio, side晒d位~而且用H265又會用少好多位~
http://www.avsforum.com/a/sony-launches-4k-ultra-hd-flat-panel-avs-coverage-at-the-event
Sony is including with the TV a media server with 4K content, and they will deliver more content for that server. Also, I learned after I posted this that the 4K Spider-Man on the server occupies about 56GB, much less than 4 times the Blu-ray version at 36GB, probably due to the use of a much more efficient codec. I don't what codec was used in this case; I'll try to find out.
chhanthony 發表於 2013-6-19 13:23 static/image/common/back.gif
就算將來推出4K嘅載具都係用Blu-ray，但相信現時無一部Blu-ray Player可以讀到4K Blu-ray，
因為4K嘅編碼好 ...
chhanthony兄...thanks {:6_211:}
去到大王有禮物送
frankiepoon 發表於 2013-6-19 13:41 static/image/common/back.gif
3層100GB BDXL既碟同支援既燒碟機一早出左啦:
http://www.techbang.com/posts/9792-pioneer-blu-ray-12x ...
真係無留意添...{:8_374:}
是否兼容現時o既BDP規格...{:6_141:}
ilavbnm 發表於 2013-6-19 14:10 static/image/common/back.gif
真係無留意添...
是否兼容現時o既BDP規格...
BDP就唔知, 因為係燒碟媒介, 所以日本既BD Recorder就一早支援{:1_352:}
http://techcrunch.com/2010/11/03/panasonic-announces-more-affordable-bdxl-blu-ray-recorder/
Sony, Panasonic, Sharp都有出
frankiepoon 發表於 2013-6-19 14:12 static/image/common/back.gif
BDP就唔知, 因為係燒碟媒介, 所以日本既BD Recorder就一早支援
http://techcrunch.com/2010/11 ...
燒data同電影BD好似有d唔同喎...{:9_424:}
即係...可兼容性機會唔大...再即係...將來又要換機啦...{:6_194:}
bigair 發表於 2013-6-19 13:34 static/image/common/back.gif
我真係想去架，不過個日咁岩約左fd去睇中大畢業展，唔知睇完趕唔趕到黎...
咦...原來你就係傳說中o既貓哥...{:6_121:}
由於貓哥已多次轉換身份
所以...依家我都唔知邊個先係貓哥...失敬...失敬...{:6_136:}
P.S...之前o既貓哥...好似反而唔用貓做頭像喎...{:6_141:}
