Archive for December, 2008
For your duplication needs, computers are the ideal way to copy media. You can use equipment outside of a computer and CD burner, although you’ll need to check the operations manual and see what they recommend for media. If you have a computer or access to one, it can do wonders in the areas of music and data CD-R duplication. There are differences between music CD-R and data CD-R disks. With one named CD-R music and one named CD-R data, you know there has to be some type of difference between the two.
What’s known is that there are indeed technical differences in what is embedded in blank music CDs when compared to blank data CDs. These differences center upon bytes that are within the sub channels of the blank music disks.
This doesn’t affect the quality, as both audio and data can be duplicated onto both music CD-R disks and data CD-R disks. You can burn data onto music CD-R, and music onto data CD-R media without any problems. Keep in mind, whether or not you get data on a music CD-R will depend on what type of hardware you use to duplicate the CD.
A PC doesn’t differentiate between music CD-R and data CD-R. PCs will see a blank media CD and duplicate information on it that pertains to the settings you have outlined in the software you plan to use to burn the CD.
If you plan to use a seperate CD burner, it may or may not let you burn data or music on a generic blank or data CD-R. Some hardware are funny like that, as they only want you to use blank media with well known brand names that they have approved of.
If you plan to do most of your CD duplication on a computer, it really doesn’t matter which type of blank CD-R you use. They will both work fine in most cases when you store either music or data. When storing data, you have a limit of 700 MB, while music will have a limit of a little over an hour of tunes.
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All My Movies: Movie Collection Organizer Software
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Bigwheelonline.com
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There are many different things between the CD and DVD Media, such as what they hold and how much they hold.
Data pits and lasers A disc has microscopic grooves that will move along in a spiral around the disc. CDs and DVDs both have these grooves, with laser breams applied to scan these very grooves.
As you may know, digital information is represented in ones and zeroes. Inside of these discs, very tiny reflective bumps known as lands and non reflective holes known as pits, which can be found beside the grooves, reflect both the ones and the zeroes of digital information.
By reducing the wave length of the laser to 625mm or more infrared light, DVD technology has managed to write in smaller pits when compared to the standard technology of CD. The minimum length allowed for a pit in a single layer DVD-R is .4 micron, which is obviously more than the .0834 micron that a CD offers.
The tracks of a DVD are narrower as well, which allows for more tracks per disc, which also translates into more capacity than a CD. The average single layer DVD holds 4.5 GB of data, while a CD holds a mere 700 MB.
Layers
As stated above, a DVD has smaller pits and the lasers need to focus on them. This is actually achieved by using a thinner plastic substrate than in a CD, which means that the laser needs to pass through a thinner layer, with less depth to reach the pits.
Data access speed
DVDs will access data at a much faster rate than a CD can. The average 32X CD-ROM drive reads data at 4MB a second, while a 1X DVD drive reads at 1.38MB a second. This is even faster than an 8X CD drive.
Universal data format
The recording formats of CDs and DVDs are quite different, as DVDs use UDF, or the Universal Data Format. This format allows data, video, audio, or even a combination of all three to be stored in a single file structure.
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