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Topic: Ripping accuracy (Read 4567 times) previous topic - next topic
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Ripping accuracy

Does anyone know of a program that will compare the CD in my drive to my already ripped files and tell me how accurately ripped they are? Sort of like EAC does, except I dont want to have to rip all my music again, I want to see how could my current rips are and if they need to be re-ripped.

Any help is appriciated,
Phil

Ripping accuracy

Reply #1 –
EAC has an option "Test selected tracks" - after testing it reports their CRCs. If their CRCs match with the CRCs of your already ripped files then they're fine. The CRC of already ripped WAV you can see by opening it in EAC's wave editor. Probably there are other, automated methods of getting CRCs from your already ripped files, but I don't know them, perhaps somebody else will tell you...

Ripping accuracy

Reply #2 –
Hmm ok. But my preripped tracks were ripped using iTunes.  So how would I get the CRCs of those files?

Ripping accuracy

Reply #3 –
To what format did you rip?

Ripping accuracy

Reply #4 –
I ripped in ACC, which I believe is also mp4, but I may be mistaken.

Ripping accuracy

Reply #5 –
AAC is often put in the MP4 container.

Since you ripped to a lossy format, the CRC's will not match even if the extraction was performed flawlessly.
"Facts do not cease to exist just because they are ignored."
—Aldous Huxley

Ripping accuracy

Reply #6 –
Hmm ok, I do not fully understand what a container is, but I will read up on that.  So if ACC is lossy then what format should I use?
 

Ripping accuracy

Reply #7 –
You have a lot of options. You would do well to read the Lossless Comparison Table. Hopefully it will answer your question about which lossless format to use.
"Facts do not cease to exist just because they are ignored."
—Aldous Huxley

Ripping accuracy

Reply #8 –
Quote
Hmm ok, I do not fully understand what a container is, but I will read up on that.  So if ACC is lossy then what format should I use?
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And again, it's AAC as in "Advanced Audio Coding".