I use Toast Titanium 7 on a Mac G4 (PPC), OS X 10.4.11, to burn CDs. Today I downloaded some free mp3s from a part of the Library of Congress website at http://memory.loc.gov/ammem/omhhtml/omhhome.html > Music and burnt them onto a CD. When I played the CD, some were OK (though the mp3s are of very old field recordings, some originally on wax cylinders, and the quality is very poor). But some were so distorted that the resulting sound was of a harsh roar of fluctuating volume but constant pitch: no melody was discernible.
An example is the third one in the list on the first webpage under 'Music'.
I examined the waveform of the downloaded mp3: its amplitude is well within peak recording level. I played it (before burning it) in QuickTime, in RealPlayer and in iTunes, and in each case it sounded OK. What is very curious is that when I tried burning the CD again, but using iTunes 7.6.2 instead of Toast Titanium, the recorded track came out OK also.
The mp3s are free ones, for public downloading, so this phenomenon is not likely to be anything to do with copyright protection against re-recording. It seems to be specifically a Toast Titanium problem. Can anyone shed any light on this? I should be very grateful.
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