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Originally Posted by hedgerow Very newbie question but if you buy a High Density HD camera and don't have an HD TV, are there any issues? Is the quality still better than standard? |
HD here stands for high definition
It doesn't matter if you do not have a High Definition TV... If you display it on a SD TV it will display as Normal definition... The quality will be good , as good as an SD display can get
As such You can use the High definition Camcorders to record as High def then display on an SD Display as SD or even use them to record SD.
it is when you record as SD , then playback via an HDTV that the extra benefits of HD become obvious
In the context of HD however, The tape based ones record in a different format:
A higher resolution higher bitrate encoded mpeg2 called HDV
The HDD ones use an " Advanced Video Coded High definition (AVCHD) which uses a cleverly compressed Mpeg4 ( H.264) in an mpeg 2 tranport wrapper" not surprisingly called Mpeg4 AVC ( AVCHD)
The HDV transport stream is called m2t while the AVCHDs HDMV
AVCHD editing support is emerging and It requires a PC with grunt for encoding and decoding
HDV editing is rather more mainstream and its PC requirements are more modest ( compared)
I have gone into some detail here because the High Definiton Camcorders which record to HDD do not have AV in and while they fulfil # 1-3 of your criteria, no 4 isnt quite as straighfoward, unless you use them to record in SD
The tape based High Def ( HDV) may have AV in ( CanonHV20) but don't fulfil #2,3 of your criteria
The Video quality in both HD formats is close though with the tape based HDV slightly ahead
With both varieties of High Def you can record SD and neither require you to nessesarily own an HDTV
HTH