Do CD-R's sound the same as originals


does a burned copy of a cd sound the same as the original
soundwatts5b9e

Showing 5 responses by raguirre

Carl, I think that you're somewhat talking past Dshin. He objected to the ---- data CD has much higher tolerance for errors than an audio CD, because of the nature of the error correction of the software (it does perform heavy interpolation to correct for errors...no personal computer would function at all, if this weren't the case) ---- which he seemed to intereprate as you claiming that data PC's do interpolation of data in the read process. His only point was that data roms never interpolate data in the read process. I think.
Dshin answers my question as I make my post... Still wondering if audio cd's could theoretically use the same IEEE standards for ripping the bits and then buffering the data for output into the DAC. Actually, doesn't Levinson do something like this?
Except it's mostly correct. When modems transfer data they do simple error detection/correction like the (11,8) method mentioned above. If there is an unrecoverable error, the word is resent. I wonder if data roms will also rescan a disc when an unrecoverable error is detected while the transport in an audio CD will simply interpolate. Just a thought. This came up in a previous thread and someone actually did some experiments with strait digital dumps. It was interesting and highly (in my mind) unexpected.
Remember, Kthomas, that a computer's transport doesn't really need to concern itself with timing the way a DAC might. From what I understand, jitter is introduced when the periods of the signal stream that the transport is outputting becomes different from that which the DAC expects. By the way, I have no idea exactly what the heuristic is for either a CD-ROM or and audio CD transport reading the bits off a disk. Does anyone know of a good reference for an explanation?
Waldhorner: Excellent post (12/4/2000).