which is the best soft for detect if a albums is from original CD or from mp3 fake...

I know this:

http://true-audio.com/ and auCDtect (link is broken for download) http://www.hydrogenaudio.org/forums/lofive...php/t20408.html

whats better? I want check my albums, thanks

No offense intended mate, but the best way to "check your albums" is to rip them yourself, from your own CDs.

That said, if you want to verify the source of any audio, each program you mentioned is readily available from this site: http://true-audio.com/Free_Downloads

- M.

In China, and I'd suspect other places, just because you bought a CD from a department store doesn't mean it's a legit copy.

So, kindly do not jump to the conclusion that anyone who asks how to determine 'real or not' has downloaded the material.

Now, sometimes its easy to tell, misprints, exatra songs, etc. But normally the art, cover, CD, etc is perfect. Just many times the source was downloaded 192K MP3s.

Best thing you can do is rip a CD to MP3 using different bit-rates.
Use the programs you mentioned to identify the content.
I won’t be surprised if the programs behave very much like us: not able to detect the difference between a high bit rate MP3 and the original

Long time ago I bought a compilation CD of an Argentinian musician, and the songs sounded pretty crappy. After closer comparison with other CDs of the same artist, it seems that CD was sourced from vinyl. Pops and noise. I'm not sure if it was even legal, I can't find that CD's edition on the internet.

I mean check some albums that I download from internet... a flac albums... my rips of course are from original CDs... but I mean other albums from internet... ????????

I think that makes GHammer's comments amusing and assumptions were correct

People try to come to your defense and you just outright say, "no, I want to check my pirated material..."
Sorry, doesn't fly hear!
The best way to check is to go buy the CD and rip it yourself.

But not in every case, mine for example. Not everyone has access to legit sources.

I have never been to china, so I couldn't tell for sure, but is it really IMPOSSIBLE to get a legit CD or just (as in Japan) hard to find a cheap legit CD?

In my country (Morrocco), some legit cd were sold in store at roughly 30$ each (250 dirhrams).
Also lot of pirated cd, are sold for less than 2$ each (10 dirhams).
This is not exactly a "rich" country, so I let you guess which version sell better (pirated or legit).
Yep, I've paid lot of these pirated cd, but I realized later that most of them were made from mp3 of crappy quality. I was often wondering why these pirated cd didn't have sound as good as some of my original cd. I got the answer from TauAnalyser.

But I'm sure that it's possible to trick TauAnalyser... By adding barely perceptible noise to the tracks for instance.

It makes you wonder why, if someone is going to the trouble of making and selling lots of pirated copies for $2 apiece, doesn't he shell out the $30 to get the real deal and copy that rather than download mp3s. Doesn't he need the real CD to accurately copy all of the artwork?

No the cd have crappy presentation, with just a badly printed image on cover .
It's obvious to everyone that they are "pirated" copy, and the sellers are not trying to make them look "original" at all. However, they won't hesitate to let you believe that they have the same sound quality as the original, and hence they are lying. Although in rare case, I found true cd quality according to TauAnalyser.

Sure, you can't always trust TauAnalyser. It may sometimes report incorrectly also because it's usually hard to determine if a track is mp3-encoded. Normally you would look at the spectrum as it often is a clear indication that an encoder had been involved. Also appearently you can determine mp3-encoding by looking at a certain windows-size that mp3 encoders use. I didn't look into how, but I read it recently in a thread here discussing obvious mp3 encodings on the "G.I. Joe" soundtrack.


Of course, they are running a business. Who would ever believe a salesman?

BTW to answer OP's question straightforward, you could try CUEtools. Use this on your own material and support the artists (at least mentioning that it's downloaded is just plain stupid)!

Slight problem here. How can you be sure someone else didn't buy the same pirated CD and used it to submit data to the AR database?

Note to administrators and other moderators, leave this post. The idea that CUE Tools can be used reliably in order to ensure a disc is authentic is completely erroneous.

Concerning the use of this: there have been rumours that some digital music vendors who have indeed just transcoded their MP3s in order to offer "lossless" the laziest possible way.

There is efficient method to verificate if CD has original quality.

Soft: Nero (v6) wave editor. Spectrogram display
Original vs Vorbis -q10 500 kbits/s

1. Original



2. Vorbis

There is no visual difference.



But now Vertizal Zoom is set to 5000%.
1. Original


2. Vorbis



The difference is clear.

First, I can't see a difference,

And second, what if you don't have the original to compare against?

It might be clearer if you take a transient event, zoom in time down to a couple of seconds and in frequency to 16kHz and above.

Vorbis is much more difficult to spot than mp3, at least at higher bitrates.

I can see the difference quite well,
if u look at the background(blue color) of the image with zoom, it is bigger in the vorbis image.

Not just in China, but even here in the US.

I regularly drive my mother to Asian-themed malls here in Southern California. In these malls there are frequently Asian A/V stores that sell CDs. Upon inspection of their music, much of it would fall into the pirated category. There are compilation CDs that only exist in those stores and nowhere else. They sell these CDs for $5 to $7 USD.

Then just a few dozen miles to the south, in Tijuana, there are quite a bit of stores that sell pirated music from 20 pesos (about $2 USD) to 50 pesos (about $5 USD).

I would venture a guess that all these pirated/questionable CDs were ripped at 128kbps to 192kbps bitrate before copying.

Buying pirated material doesn't make it any less pirated. If you want to know what the quality of your music is, buy a retail CD.

On the otherhand, I remember watching an interview with a musician (don't remember who, I think maybe a member or rolling stones) where they were talking about how they were recording their shows in mp3 and using this a source material for a live album. They thought it was so cool and convienient.... they were actually proud of this