6 Feb
2007
6 Feb
'07
10:04 a.m.
Jim Leonard wrote:
Chuck Guzis wrote:
I'd like to read up on DVD technology too but I've not been able
to locate much (I'd like to read the various standards that
detail the physical layer and so on, not some non-technical
overview - I can find plenty of those.)
Pointers would be appreciated (paying ECMA or whoever would not :-))
I did come across an article which was _slightly_ more technical
than the others I've seen. It boiled down to "DVD+R is better
because the way it tracks the data stream and the error correction
were both improved" (or something like that). Naturally I now canot
find any trace of it. (Not that it went into sufficient depth,
it just scratched the surface a little deeper than the other
articles I've seen).
Antonio
For archiving our stuff and our customers'
data, we use Mitsui/MAM-A
"gold on gold" CD-R media. Mitsui claims that the storage life of
the dyes used is in excess of 300 years. I can but surmise that it's
our best bet. While I'd like to believe that DVD-R media has the
same permanence, my problems with DVD players successfully reading
movies and such makes me suspicious. It could be that DVD is just
"pushing" the technology a bit.
You should read up on DVD technology. DVD-ROM has 1.32x the
Reed-Solomon error-correction of CD.