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Hydrogenaudio Forums > CD-R and Audio Hardware > CD Hardware/Software
Rivers1080p
Q:Why bother ripping a CD-R in the first place?
A: It's a copy of an impossible to find soundtrack (Smokey and the Bandit).


So...
I'm using EAC + Accurate Rip
Have tried Secure and Burst Test & Copy with C2 disabled although I think my player supports it (Samsung DVD burner SH-S202J)
Secure mode takes forever and yields plenty "Suspicious positions"

The last track with both rip methods is accurate with matching CRC's

The disc is a TDK CD-R Lightscribe disc with "print".
Is it just a badly burned disc and nothing I can do?

Have listened to the ripped results in my car without hearing anything wrong.
I came accross a wiered error sounding thing while editing one track.
simonh
What is your question?

You are surprised to hear artifacts from a dubious cd-r and want us to do what???
Rivers1080p
Just like to know...
-Is this normal with burned CD's that they rip badly? Are all CD-R really that crap?
-Is there another ripping method that works better with CD-R?
-Is it better to play this disc on a CD/DVD-player that has digital audio out and connect that to my computer for real time recording?
-Can I make several rips (of which all have different CRC) and then have them combined to average out errors?
-..........................................................?
-Or is there really nothing I can do?
spoon
CD-Rs are much more difficult to rip than pressed CDs.
j7n
CD-Rs are not crap. A properly recorder CD is a good archival medium for cases where 700 MB is enough. If error rates are low 800 MBs worth of digital audio will also be reproduced perfectly, but you cannot be sure about that.

Burst mode will in most cases provide the same result as playing the disc at 1x (except old optical drives).

Try another disc drive. But don't expect to get a perfect rip. Just fix any audible errors and mark the album as insecure for future reference.
bhoar
QUOTE(j7n @ Aug 24 2008, 04:37) *

CD-Rs are not crap. A properly recorder CD is a good archival medium...


I think I might be acting a bit pedantic here, but I disagree that CDDA is a good archival medium, due to the lack of reliable error detection (see discussion on secure rippers for similar arguments). This issue applies to pressed audio CDs as well, of course.

Now, a Mode 1 DATA CD-R as a good archival medium...that I might agree with. smile.gif

The rest I had no argument with.

-brendan
Rivers1080p
OK, thanks.

Just have to accept that I'm not gonna get a more accurate rip than what I allready have and take some comfort that it's most likely better than a recording made from the LP or cassette smile.gif


j7n
QUOTE(bhoar @ Aug 24 2008, 12:52) *
I disagree that CDDA is a good archival medium

Perhaps I should have written more clearly, but I also meant Mode 1 (=700 MB).
pdq
QUOTE(Rivers1080p @ Aug 24 2008, 03:54) *

-Is it better to play this disc on a CD/DVD-player that has digital audio out and connect that to my computer for real time recording?

This is definitely not a good alternative, in my opinion. It has one advantage, because if there are read errors then the player will try to interpolate in order to make the error as inaudible as possible. However, if there are errors then the CD player will never tell you they were there, so you will never know how good or bad your audio data are.

Also, (and this is a guess) I suspect that a computer's CD drive is probably better able to read CD-R discs than a CD player.
greynol
I'm with j7n, try another drive.
uart
QUOTE
Have listened to the ripped results in my car without hearing anything wrong.

I came accross a wiered error sounding thing while editing one track.

So do the tracks sound ok or not? I've had some CD the indicated ripping errors but still sounded perfect to me, (cases where I never could locate anything sounding bad).

In other cases however where I've had ripping errors they've been clearly audible, often with clicks and rhythmic (but not in sync with music) ticking noises. These ones are pretty annoying.

As mentioned, try another drive. In general it's always your best option with any type of CD ripping error. In this situation I like to try it on as many different (brands/models) of CD/DVD drives that I can get my hands on. In my experience, once a particular drive has major issue with a certain disc then no matter how many times you try or how many different rip settings you try you still end up with some type of problem. (well not always but usually).

Sometimes however you can just take the same CD to a different model drive and it will rip perfectly first time. I've found that CD-burners (as opposed to DVD/CD burners) often read CD media the best. I've still got an old "cyberdrive" CD 16x CD burner (not even sure what real model this was a re-badge of) that's totally magic at ripping audio from suspect media. I keep it in a draw but I'm hanging on to it.
Rivers1080p
It doesn't sound bad, it's just one faint sound/distortion I found while editing one track.
But that may come from the the guy who ripped the album the first time :-\
Don't know if there's more errors. Haven't done a carefull listen to the album yet.
At least there are no big obvious errors.

j7n
----
But that may come from the the guy who ripped the album the first time
----

Errors caused by a bad rip will look like individual wrong samples or perfectly straight lines in an audio editor. More serious read errors will cause entire data sectors (588 samples) to be replaced with silence, or interpolated samples. It is however still possible that broken audio matching this description was already written to the disc.

But if you see faint ripple near the sharp distorted sections, like in this picture, it means that the transmission errors happened one or more copy generations ago and the data has subsequentially gone through an analogue link, resampling or lossy compression. In this case you can definintely say that your disc is not the cause.

Any other analogue looking artifacts or clipping also can't be caused by ripping errors.
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