>>>With Roxio Easy CD Creator, the software always defaults to the fastest speed.
>>>I'm still using 24X CD-R's. I manually select 24X for the max. speed. Is this
>>>necessary, or will the software realize the speed of the CD?
>>By default, the software will select the highest speed that the ATIP of
>>the disc, the firmware of the drive and the job you are doing will
>>allow. You cannot force ECDC to try a higher speed. Under most
>>circumstances, you can tell it to use a lower one.
> Which is what I did, i.e., select the slower speed, the one which matched the
> CD. But you're seeing that it wasn't necessary, correct? (Just confirming.)
It is often true that a vendor's "16x", "24x" and higher-speed discs are
identical except for the number on the package. Where the drive
manufacturer has tested the medium and has set a maximum speed in the
firmware, you may use that safely.
In other words, it will not try to write a disc which it recognizes at
more than the highest speed it believes appropriate. You may be able to
select 24x, but it will not use that speed if it knows better. If it
does not know the medium, it will use a default max speed.
Two points on this: the drive cannot read the package; the ATIP of a
write-once blank is unlikely to specify a max speed.