Sky HD+ offer

well the sky guy as been and gone and ive set up the tv to show off sky hd at its best and at the moment the jury is out.

I watched natures great events on normal digital last week and at 6pm this eve ill watch it in hd and see if there is a big difference .

Tvmog, yes you are right Europsort hd as a different  content to normal Eurosport so ill have to keep both subscriptions going as i dont want to miss any motorcycle racing.

I recorded rush hd to sky + then recorded it to dvd via scart and it worked, now im not saying its recorded in hd quality but its still impresive quality all the same as long as you set the quality on dvd recording to 1 or 2 hours.

Which brings me to the question that if you record hd to dvd and your watching it on a good quality tv then who can say its not hd quality?

If you buy a dvd thats been filmed with hi def cameras does the hd get downgraded to dvd quality or is dvd quality as good as hd?

Its one to ponder and im sure the more knowledgable forum members will be able to answer.

Tangerine Dream,ÿ

Simple answer to your HD - DVD quality question is no. DVD is a standard def format in that its image has a frame resolution of 720 x 576 pixels whereas Full HD on Blu-ray has a frame resolution of 1920 x 1080 pixels. Doing the maths tells us that a single frame of SD contains 414,720 pixels whereas a frame of HD contains 2,073,600 pixels which illustrates why DVD is not High Def.

DVD's made from HD-sources are made by sending a downconverted standard def signal either off the back of an HD-VTR into the DVD encoder or via a standalone downconverter like the Teranex. The DVD you recorded from your Sky+ box is a standard def recording, albeit one made from a high quality original - and one that was downconverted from a digital HD signal on your Sky+ hard disc to a standard def analogue signal to be output from your scart socket into your dvd recorder. It was then digitally encoded and compressed as an Mpeg signal onto your DVD - so HD it most surely ain't.ÿ

Sure, the quality of upconverters in DVD players and in TVs are getting better all the time, but what you are seeing is not a true HD picture whatever HD TV you watch it on. What you are seeing is some very clever mathematical algorithms generating picture information which was never recorded to fill in all those missing pixels from an SD image to fill your HD TV screen.

Hope that explains just a bit !ÿ

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Thanks for the very informative reply Robjcooper.