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Article #767

Measure error rate? [Was: CD recorder burn quality issues - help]

#767
From: Phred
Date: Sat, 10 Jan 2004 14:10
45 lines
3082 bytes
In article <3FFF91C3.4040300@cpl.net>, mrichter@cpl.net wrote:
>Trades wrote:
>
>> My question relates to which internal CD recorders have the highest
>> quality burns.
>
>Burn quality depends slightly on the drive but much more substantially 
>on the match of drive, speed and medium. Decay of a disc in 20 months 
>(or in 50, for that matter) is either due to a poorly written disc in 
>the first place or improper handling (poor label adhesive, leaching ink 
>or solvent with a marker) or both.
>
>Best bet: take a preferred blank at a preferred speed and measure the 
>error rate. If it's not acceptable (for me, that means zero errors), try 

Mike, what program would you recommend for this sort of diagnostic 
check on media you've used or are planning to use?

>other speeds or other media until you find an acceptable fit that you're 
>prepared to pay for. ("Pay" in time as well as money.) Waiting for the 
>mastering program to tell you that the write failed is like waiting for 
>your car to stop to tell you that the radiator is dry.

Tell me about it.  I'm getting 25 to 33% bad writes on ISO CD-Rs.  :-(
(But no trouble with CD-RWs or UDF formatted CD-Rs. :)

I particularly notice the problem with CD-Rs when backing up those mag 
disks.  (Don't ask why I bother! 8-)  As a couple of mags usually turn 
up together (i.e. 4 CDs) I try to back them all up at one sitting.  
But almost invariably I get a failure of the 3rd or 4th one and have 
to give up until "tomorrow".

Mind you, I'm also aware of a "treacle" problem with Windows Explorer, 
which might be related -- after "accessing" a large number of files 
(e.g. simply scrolling through directories) the process slows to the 
equivalent of swimming through molasses.  Sort of reminiscent of the 
hold ups years ago with "garbage collection" in BASIC systems.

[ This with a Dell Dimension 4100 P3 1.1GHz 128MB RAM, Windows ME. ]


Cheers, Phred.

-- 
ppnerkDELETE@THISyahoo.com.INVALID
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From: ppnerkDELETETHIS@yahoo.com (Phred)
Newsgroups: alt.comp.periphs.cdr,aus.computers,alt.sys.pc-clone.dell
Subject: Measure error rate? [Was: CD recorder burn quality issues - help]
Date: Sat, 10 Jan 2004 14:10:55 GMT
Organization: Just me
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