Originally Posted by nelamvr6
There is a really good piece written by Robert Harley in the December 2006 TAS. It's on page 121, it's a sidebar on a piece about the "Memory Player".
If a CD has errors, this will manifest itself in the form of localized errors. Either that or the thing won't play at all.
CD errors will NOT manifest themselves as generally poor sound throughout the CD.
Thats completely false. There are two types of errors on CDs which teh player will try and correct: fully correctable, and interpolated. Fully correctable ones are as teh name suggests, all bits are exactly replaced, as they were recorded. Interpolated are when bit errors are extensive enough that the red book mechanism can't correct all teh errors exactly. In this case, the player uses the companies prroprietary interpolation method to replace the dropped words with educated guesses, with ones their algorithm calculates to be the best choice. Once the bit errors get beyond this, the players usually just blank or freeze.
What often makes one transport better than another is its ability to inetrpolate in teh most natural and pleasing manner possible, for error prone discs. The latest Rega prescans the Cd and chooses from one of at least two (perhaps more, I can't recall that detail) correction algorithms, using teh one that best suits the nature of the errors found on teh CD.
I started a thread elsewhere asking for recommendations for cheap CD/DVd players, which have the best error correction schemes (to be used as a transport with digi out and a Lavry). I'm all ears for suggestions.