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Originally Posted by Cojo  I've always been thinking of this as audio CD is a live data stream and because of this only have a limited amount of time to do error correction while data CD has all the time in the world and can repeat a section over and over again until it gets it right. |
It's a holdover from the state of the art in technology when the format was defined (almost 30 years ago!) Good error correction requires several things--additional storage capacity (to hold the redundant data that makes error correction possible), sufficient RAM to do read-ahead (since the error correction takes time, and you don't want the audio to stop), and enough digital processing thrust to pull it all off.
All of this was rather difficult back in the bad old days, but can be done with a nickel's worth of sand today.