[filmscanners] Re: OT: DVD formats

["" <rkoziol3@comcast.net>]

Hi,

On 2 Sep 2003 at 13:44, Lucans, Gunars wrote:

> Note that 2.4x for DVD is not the same as 2.4x for CD-R and is quite a
> bit faster (although I can't find a reference just now, it's more on
> the order of 30x for cd-r).

This topic is coming up lately.  Could be the price breaks, so people
are thinking about it.  So am I.  Here's something I lifted from
another list.

"The difference between CDR speeds and DVD speeds is for CDR
speeds each 1x = 150KB sec for DVDs each 1x = 1353KB sec.

So 4x would be for CDs (4X150 = 600KB sec) and 4x for DVDs
(4x1353 = 5,412KB sec or 5.4MBps)

So recording DVD is much faster than CDR recording since DVD
drives have a higher storage capacity of 4.7 GB single-sided as
opposed to CDR 600 - 800MB single-sided and need a much higher
bandwidth for packet writing."



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