Apple Using WaveBurner Logic Pro 7.1 - Manual (Page 26)

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The CD Track Info Window
The CD Track Info window is the best place to view and edit track information,
including copy protection and pre-emphasis flags.
To show the CD Track Info window, do one of the following:
• Select the track in the Track list, then choose Disc > Track Info.
• Click the track start marker for the track, then choose Disc > Track Info.
• Double-click the track start marker for the track.
Setting the Copy Prohibit Bit
You can set a Copy Prohibit Bit for a track. When a track’s Copy Prohibit Bit is set, the
track cannot be digitally copied more than once by recording devices that support the
Serial Copy Management System (SCMS). These devices automatically write a Copy
Prohibit Bit to prevent further generation of digital copies of the track.
Consumer-level DAT recorders (and infrequently, professional-level units) are usually
equipped with SCMS. Given the number of recording devices that do not include this
type of copy protection, setting the Copy Prohibit Bit does not guarantee that the track
cannot be copied multiple times. WaveBurner provides the option to set the Copy
Prohibit Bit in order to comply with the Red Book standard.
To set the Copy Prohibit Bit:
m In the General pane of the CD Track Info window, choose “Protected original” or
“Protected copy” from the SCMS pop-up menu.
Setting Track Pre-Emphasis
The use of pre-emphasis dates from the early days of digital sound reproduction, when
14-bit A/D converters without oversampling were frequently used. The high frequencies
of digital recordings were boosted or “emphasized” during conversion (similar to the
RIAA EQ process for vinyl records), then were attenuated (de-emphasis) after D/A
conversion. This process tended to mask the inaccuracies of the conversion process.
With today’s advanced digital recording technology, it is recommended that you leave
pre-emphasis turned off, because modern converters are capable of delivering linear
conversion that produces substantially fewer errors than de-emphasis filters.
Note: WaveBurner only supports pre-emphasis so that old digital recordings that were
processed with a pre-emphasis algorithm can be marked as such. WaveBurner’s Pre-
emphasis is only a flag intended for the CD player, and will not change the way that the
audio is processed when you burn a CD.