audiog
join:2004-08-09
Detroit, MI
1 edit | reply to trebzon
Re: .... no thanks
Yes I agree.
WMP 9/10(MPEG 3) are up for DVDHD certification as the file format for the next gen DVD players. The other format is Blueray( MPEG 4) backed by Sony and the other computer hardware manufacturers.
Half of the DVD governing body wants WMP 9(MPEG 3) format and the other wants MPEG 4 video and audio. This has caused the MPEG 4 backers to break from the DVD governing body and to form the Blueray group a independent governing group. Now the IEEE guys are trying to mend the breakup and now the Blueray group is considering supporting WMP 9 and MPEG 4 as file formats.
So WMP 9( MPEG 3) is a natural test bed for IP TV but they should be looking at MPEG 4 also.
MPEG 4 is 30% more coding power the MPEG 3.
This link will explain the difference between MPEG 4 and 3:
»www.telos-systems.com/?/techtalk···ault.htm |
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pnosker
Premium
join:2003-03-26
Stockton, NJ
clubs:
| Er.... this link is Audio (Layers referring to audio layers). AAC is a competiting standard against MP3. mpEG4 and mpEG3 are not the same.
From Wikipedia:
MPEG-3: Originally designed for HDTV, but abandoned when it was discovered that MPEG-2 was sufficient for HDTV.
MPEG-4: Expands MPEG-1 to support video/audio "objects", 3D content, low bitrate encoding and support for Digital Rights Management. A new (newer than MPEG-2 Video) higher efficiency video codec is included (an alternative to MPEG-2 Video), see H.264.
»en.wikipedia.org/wiki/Mpeg explains it a little bit. |
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Corvus
Flaming Tards Since 2003
Premium,VIP
join:2003-11-26
| pnosker  is right, MPEG-3 doesn't exists.
Also, the Microsoft video codec is known as WM9 or VC-9 not WMP9 which refers to Windows Media Player 9.
Both MPEG-4 (H.264) and WM9 have been shown to achieve comparable quality to MPEG-2 at half the bit rate.
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Don't worry, it's not loaded. ~~Terry Kath, musician, Suicide playing Russian roulette. January 23, 1978 |
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ronpin
Imagine Reality
join:2002-12-06
Nirvana
 ·AT&T Southwest
2 edits | This thread say's it all
»www2.broadbandreports.com/forum/···ode=flat
SBC executives in San Antonio have been testing the carrier's IPTV service for 45 days or so. The service is being fed from Austin, where five local San Antonio channels are being fed from Echostar, compressed with Windows Media 9, and sent via optical link to SBC's San Antonio offices. More fleshed-out residential trials for IPTV will begin in April. Yeah, so they do see the benefit of fiber -- just not for their peasant fiefdom? 'Frick'n genuises have no frickin clue how their meager f2 copper pairs behave when wet -- even at low 5mbs speeds. Their ratty f2 copper pairs are gonna choke at 20mbs. What fools. "If you can't afford to do it right (FTTP) -- you sure as hell can't afford to do it over". This'll be one of those MBA case studies in corporate stupidity. Incredibly SBC can afford $16 BILLION for some corporate incest with a dying company like AT&T -- but they're upgrading their cash cow on-the-cheap in hopes that their customers are too stupid to know the difference. I can tolerate idiots, but not fools.
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Lord protect me from your followers |
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XBL2009
------
join:2001-01-03
Chicago, IL
·AT&T Midwest
| reply to audiog
Re: .... no thanks
said by audiog :Yes I agree. WMP 9/10(MPEG 3) are up for DVDHD certification as the file format for the next gen DVD players. The other format is Blueray( MPEG 4) backed by Sony and the other computer hardware manufacturers. Half of the DVD governing body wants WMP 9(MPEG 3) format and the other wants MPEG 4 video and audio. This has caused the MPEG 4 backers to break from the DVD governing body and to form the Blueray group a independent governing group. Now the IEEE guys are trying to mend the breakup and now the Blueray group is considering supporting WMP 9 and MPEG 4 as file formats. So WMP 9( MPEG 3) is a natural test bed for IP TV but they should be looking at MPEG 4 also. MPEG 4 is 30% more coding power the MPEG 3. This link will explain the difference between MPEG 4 and 3: » www.telos-systems.com/?/techtalk···ault.htm HD-DVD and BluRAY support WMV9, the differeces between the two formats is surprisly little except the size of the storage. |
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pcscdma
Chocobo Chocobo Random Battle
Premium
join:2004-01-14
Winterset, IA
clubs:
| said by XBL2009 :HD-DVD and BluRAY support WMV9, the differeces between the two formats is surprisly little except the size of the storage. HD-DVD and Blu-Ray can support anything because the arrangements of the bits are irrelevant to the disc's physical format.
HD-DVD uses 35GB and requires very little retooling work to be done in manufacturing to get the drives out.
Blu-Ray uses 25GB on a single layer disc and 50GB on a dual layer disc and requires some changes to existing factories so they can manufacture the drives. It supposed to be initially more expensive to manufacture than HD-DVD.
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"The bad news is that we are told that Michael Powell, one of Washington's better bureaucrats, is calling it quits today after four years at the helm of the Federal Communications Commission." - WSJ 2005/01/21 |
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