Mike, In the steps you describe below, are you talking about conversion from wav. files to CD-player-readable cda. files, and then back again? James >>> [log in to unmask] 03/19/03 07:06PM >>> At 05:17 PM 3/19/2003 -0500, Steven Smolian wrote: >Maybe so, but I hear differences sufficient to have made lazy old me take >time to investigate this. Fine. The investigation is straightforward. 1. Take a set of 'redbook' WAVs from your hard drive 2. Write them to a disc known to produce known errors at your write speed 3. Rip the tracks to WAV using your choice of program, correcting for offset as required 4. Compare the original and the extracted WAVs with WinDiff or equivalent NOTE: If you see occasional errors, you have a poor write in step 2 or poor extraction in step 3. Any change of overall parameters, such as frequency response or dynamic range will be continuous. Mike [log in to unmask] http://www.mrichter.com/