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EAC voodoo magic rolling dice ripping

I can rip a disc that looks like a dirty road map with lightning speed. I can rip a disc that looks pristine for half an hour or longer.

I cannot figure out what makes EAC tick. I cannot predict how well anything will rip with confidence.

Maybe I should be using Burst mode, rather than Secure. Maybe (probably) I should have bought a really nice drive.

To be clear, however, with this post, I curious about the CDs, themselves. I suspect some older CDs may suffer partial delamination following years of rough handling, that a smooth polycarbonate substrate isn't as essential as expected or suggested. Then again, perhaps some discs are simply engineered poorly?

I admit that, in the end, my struggles may lead back to using secure mode. Or my drive. Clearly, I'm without a clue.

If you have the time and patience to share, I'm all (digital) ears.

Re: EAC voodoo magic rolling dice ripping

Reply #1
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To be clear, however, with this post, I curious about the CDs, themselves. I suspect some older CDs may suffer partial delamination following years of rough handling, that a smooth polycarbonate substrate isn't as essential as expected or suggested. Then again, perhaps some discs are simply engineered poorly?
Probably not poorly "engineered" but manufacturing is an imperfect mechanical process and there can be manufacturing defects.    They are not necessarily manufactured to be "bit perfect" but they should play "audibly perfect" on a CD player.    As far as I know, a CD with small "data errors" is not considered defective by the manufacturer as long as it sounds OK when played.

The data-layer is on the top of a CD and it's read through the full-thickness of the polycarbonate.   It can be damaged from either side and I think it's easier to damage a CD from the top, and it's not as easy to see the damage because of the label/printing, and you can't repair top-damage by polishing.    (The data layer on a DVD is in the middle of a polycarbonate sandwich, so you can sandpaper the top without hurting it.    The data layer on a Blu-Ray is on the bottom.)

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Maybe I should be using Burst mode, rather than Secure. Maybe (probably) I should have bought a really nice drive.
If AccurateRip shows no errors, it doesn't matter which mode you used.   If you do get errors, or if CD isn't in the AccurateRip database it might be better to use a more secure mode.    Or if you don't hear any glitches/defects there's not much to worry about.   (But, it's easier to use AccurateRip than to listen-carefully to each rip and/or sometimes you'll hear an audio glitch from somewhere else earlier in the production chain even if the CD itself is digitally perfect.)


Re: EAC voodoo magic rolling dice ripping

Reply #2
Yeah, I'm not getting errors so much as very, very slow rips on some discs. I just did a Timbaland disc that took and hour and a half. Then another disc that took maybe two minutes.

Some discs have these "patches" of slightly different color or value, as seem against the data layer, looking through the thick polycarbonate. I've seen this on many, many discs, and wondered if that's an indication of delamination—if delamination is even a thing. So that, in combination with these occasional slow rips, left me wondering if the root cause is delamination.

Maybe this is an inconsequential roll of the dice determining the visual consistency of manufactured discs, and is no cause for alarm. Like you write, it could be that some discs are manufactured to less exacting standards, and cause EAC to slow to a crawl.

 
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