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echo: audio
to: JAVIER COLTER
from: RICK MCBROOM
date: 1998-02-04 05:19:00
subject: CD-R

 -=> Quoting Javier Colter to Rick Mcbroom <=-
 JC> Yeah, I use Cool Edit too.. It's a great program..
 A good one, any way. Sure beats WavMaker, the OEM Compaq utility!
 RM>> 2. Listen to the .WAV file, to verify that I didn't get any buffer
 RM>>    under-runs. You can dispense with this if you're brave..
 JC> There's no need for this..
 I disagree. It depends on your specific system, really. And how much of
 a perfectionist you are, I suppose.
 JC> If you have enough memory and enough buffers you will be sure that
 JC> there's no clicks/chops in the audio file.
 I have 64 megs of RAM, my buffers are maxed out in Cool Edit's setup, and
 I /still/ get the occasional under-run. How much RAM do reckon I need?
 RM>> 3. Convert the .WAV file to .CDR format. This takes place at
 RM>>    aprox. 6x to 8x speed.
 JC> I don't understand why you must convert to that format. It's only
 JC> with your CD-R?
 No, it's because conventional audio CD players won't read .WAV files,
 only CD Raw (.CDR) files.
 JC> I have a Panasonic writer and I just grab the wav files and burn
 JC> them to cd audio tracks..
 If you're actually burning .WAV files onto the discs, then I must assume
 that you play them ONLY on your computer. You sure ain't gonna be able to
 play 'em on a regular CD deck!
 OTOH, if your discs /do/ play on a conventional audio CD player, then the
 mastering software must convert from .WAV to .CDR on the fly. What brand/
 version mastering software do you use?
 RM>> 4. Burn the .CDR files to the CD-R at 2x, with "test-before-write".
 RM>>    So it's real-time, in effect.
 JC> I never use test-before-write and never had problems.
 I do. Sometimes I get under-runs, sometimes the recording will actually
 abort. I can pick back up, but at the very least I get one ruined track.
 JC> ..+/- 17 minutes to burn it to a cd at 4x.
 You burn at /4x/ with test-before-write off?! That's amazing.
 Tell me more about your system;
   What CPU are you running?
   How much RAM do you have?
   What brand hard drive do you have? What are it's access time specs?
   ARE your hard drive and CD burner IDE devices, or are they SCSI?
   What mastering software do you use, exactly?
 FWIW, I'm using a Compaq 4814 w/ 233 mhz Pentium II, 64 megs of RAM,
 a Quantum Bigfoot 6.4 gig IDE HD (<14 ms average seek time), my CD-R
 is a Philips OmniWriter IDE internal, and I use the HyCD mastering 
 suite (OEM version).
 JC> Four hours is insane.. :)
 Tell me about it.
 I dunno what to make of all this. Either you're running SCSI drives, or
 the OmniWriter is the lowest of the low in IDE burners, or your system
 is exceptionally fast and/or fine-tuned.
 From what I've been able to gather on usenet, and on the Adaptec, HyCD
 and Philips support sites, you're having exceptional luck. Very, very
 few folks are getting that level of performance from IDE burners, as
 far as I can tell. Some are having bona-fide nightmares, with problems
 far exceeding those that I've had...
... NP: Freedy Johnston _This Perfect World_ "I Can Hear the Laughs"          
  
--- GEcho 1.11+
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* Origin: The Music Room, Memphis TN (901) 452-2134 (1:123/38)

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