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?

[greynol]

I don't care who added it. From the standpoint of someone viewing the database irrespective of the limitations of any single piece of software, ARv2 was just a silly and futile patch to a half-baked checksum algorithm in order to attempt to fix a problem that was never shown to exist in the real-world. To suggest that it is required for cross-pressing verification is categorically incorrect. Long prior to the advent of ARv2, the AR database has been successfully used for cross-pressing verification. I don't think it's a good idea to rewrite history for the sake of convenience.

A good wiki article will answer the basic questions asked rather than dive into a convoluted explanation of offsets and overreading.

What does AR do?
How is AR organized?
What do AR results mean?
What are pressings according to AR and how does this differ from what pressings are in real-life?
What steps are taken to curb errant or redundant submissions as well as vandalism?

Another question on a different point:
How does a drive know where the disc ends?

This post has been edited by greynol: Sep 11 2012, 16:46