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1/6/2009
Tuesday morning
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| In article ,
idreos@aol.comnospamQQ (victor voul) wrote:
Am looking at new computers and was wondering if its possible to
record your
favorite audio recordings into custom CDs using the ne CD RW Drives??
What is difference between these drives and the CD burners
Thank you very much for your help!
Jim
Please remove **nospamQQ** from my address when replying via email.
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| My son has asked for a CD burner to create audio CDs. I would like to
use it to archive digital photos and general computer data for backup.
Any suggestions? I would like to have an external, USB enabled burner. |
|
Welp, Jim, here goes again. First of all, CD manufacturing for distribution
of music, CD-DA, is a different process than that used for recording via a
CD-R burner. In the case of a CD-R a laser actually burns the pits (not
really pits, but it represents the same thing in read mode) into a special
layer thats sensitive to laser light of a specific frequency (somewhere
down in the nanometers wavelength). So with these burned pits the
difference in refraction represents data, while the original refraction
represents none, so you have 1s and 0s. In a manufactured CD there are
actual pits that have the same difference in refraction representing the
data, but they are indeed physical pits. Now on a CD-R thats been burned
to CD-DA specs (called Redbook) virtually any CD player is supposed to be
able to read and play them, but sometimes things happen like the original
burn laser wasnt set to the correct frequency for whatever reason, and
therefore doesnt present the proper refractance t. |
| 24X/4X/4X CD REWRITER BACKPACK PC USB PARALLEL CDRW W/SW
(MicroSolutions) - (192100) $231.51 Rebate : $20
Im not certain of the differences between CD-R (record only once???)
and CD-RW (record and re-record/add?). Is it just the media that is
different or the entire device? |
| CD-RW: You can write these, erase them, and write them again. Its not
like a hard disk where you can delete individual files, you have to
erase the whole disk to re-use it. It wont play on your audio CD
player, DVD player, or (it might play on some, but mostly it wont).
These are more expensive, but you can re-use them. |
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