>But the RF levels I'm getting with Mitsui Golds is only adequate, 10%
>less than I got in the golden age of 63- and 74-minute CDRs.
You only need be concerned about RF levels when they are very low.
>From my experience, if you have one disc with 70% relectivity and another
with 60% reflectivity, it does not follow that the quality of recording is
better on the higher reflectivity disc. I have found that reflectivity above
60% is more than adequate and ensures good compatibility . What is more
crucial is the ratio of the rf level coming from the shortest pit (3T) to
the rf level coming from the longest pit (11T). This should ideally be much
less than '1' otherwise the CD decoder can get confused and misinterpret the
length of pits.
This is just one aspect of the quality of a disc. Reflectivity might be
great, but problems can still occur - e.g. jitter
>Please Paul, can HHB provide a hotter 1x-4x CDR?
As already explained, hotter does not necessarily mean better. It is more
crucial that you get a good overall balance of parameter specifications.
best regards
Paul, HHB
-----Original Message-----
From: Dan Dugan
Sent: 06 December 2002 20:07
To:
Subject: RE: [Nature Recordists] CD Burn Rate
DAN DUGAN
> >How do they differ from Mitsui Gold 74s (AK707MIOA)?
PAUL ISAACS
>They are very similar. However, HHB discs are regularly and rigoriously
>monitored to ensure all batches maintain the very high standards required
by
>the pro-audio industry.
I appreciate premium quality control; where my product depends on it,
I'm willing to pay a little more for it.
But the RF levels I'm getting with Mitsui Golds is only adequate, 10%
less than I got in the golden age of 63- and 74-minute CDRs.
I'm not finding the BASF ceramics at dealers. Two dealers say TDK
Studio 74 CDRs have been discontinued.
Please Paul, can HHB provide a hotter 1x-4x CDR? It's a niche market,
it's there, but most people don't know what the source of the
problems they're having is. HHB's publicity machine can fix this!
-Dan Dugan
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