Understanding Rippers and Accuraterip Submissions Options

[jayess]

I'm trying to learn more about the process of ripping and how it works in regards to Accuraterip.

"For example, audio CDs contain 16-bit, 44.1 KHz LPCM-encoded audio samples interleaved with secondary data streams and synchronization and error correction info. The ripping software tells the CD drive's firmware to read this data and parse out just the LPCM samples. The software then dumps them into a WAV or AIFF file, or feeds them to another codec to produce, for example, a FLAC or MP3 file."

http://en.wikipedia.org/wiki/Ripping

If I insert a CD from say Led Zepplin's box set of complete studio recordings, or an Elton John hybrid SACD, or a CD that's been remastered, how does a ripper and Accuraterip differentiate and correctly identify which of the recordings I have? If the selection the ripper returns in identifying the media is wrong (the media is a 2009 remaster and the ripper claims it is the original 1973 disc) and I don't change/correct it, how does that affect the database?

[jayess]

This stuff does make you go h'mmm. I find out I've got two copies of another disc. I start ripping the first last night and go to bed, because Accurate rip says it's not in the database and rips its secure. This morning I rip the second copy and it gets mainly 6's and the CRC's exactly match the first disc and remain green to indicate they did match.

And I had some brand new CD's arrive yesterday and witnessed another strange one I see from time to time; you put the disc in and it reports being in Accuraterip before you start ripping, then as soon as you do start ripping every single tracks gets ripped secure to lead you to believe it wasn't actually a match to anything.