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DVD - CD Articles and Information

Optical disc (Compact Disk) authoring, including CD and DVD authoring, known often as burning, is the process of recording source material—video, audio or other data — onto an optical disc (compact disc or DVD).

Data on an optical disc is laid out in sessions. Each session consists of a lead-in, containing the session's Table of Contents, the program area in which the individual tracks are located, and the lead-out.

The number of tracks on a compact disk is limited to 99 in a session. The specifications require at least one track in each session. The tracks are located in the program area of the session.

In multisession discs, the lead-in areas contain addresses of the previous sessions. The TOC written in the lead-in of the latest session is used to access the tracks.

The Table of Contents (TOC) is the area where the layout of the tracks on the disc is described. It is located in the lead-in area of the compact disc session. The TOC on discs is in principle similar to partition table on hard drives.

The lead-in area of a CD (Compact Disk) session is the starting part of the disc. It contains the TOC for the session, and the address of the next available free part of the disc available for the start of the next session, unless the disc is closed and therefore no more sessions can be added, or the disc is not multisession.

The lead-out area is the ending part of the CD (Compact Disk) session. When the session is closed, the lead-out area is written. The first lead-out is 6750 sectors (about 13 megabytes) long, each subsequent lead-out is 2250 sectors (4 megabytes) long.

A track is a consecutive set of sectors on the disc containing a block of data. One session may contain one or more tracks of the same or different types. There are several kinds of tracks: Audio tracks, Data tracks.

The following articles present a well rounded discussion on the topic of ipod and compact discs and dvd's and will added to on a regular basis.

CD Mastering Engineers provide an essential service
A CD mastering engineer is an absolute necessity if a recording artist or aspiring musician has any hopes of having their songs played on the radio. These artists will need to have their rough mix professionaly mastered before...more

CD-R media and CD burners
CD-R media and CD burners are fairly recent additions to the music industry. Up until there existence computers had just reached the GHz speed, with Pentium 1 just starting to become available. Floppy disks were...more

CD Ripper Software
CD ripper software will give you a fantastic new way of collecting and listening to music. With the use of CD ripping software, you can take audio tracks from a CD and put them into audio files for use on your...more

Differences Between CD and DVD Media
Even though both CD and DVD disks have the same media size and shape, the things they have in common stops there. There are many differences between the two such as what they hold and how...more

The Basics of CD Duplication
CD duplication has become much more involved than just transferring a few songs on to a disk. If you've been shopping for blank CDs or blank DVDs recently, you may have found yourself a bit confused by all of the...more

Factors In CD Duplication
CD duplication which is the process of writing data to a recordable CD can be a complex process. It demands a lot from both hardware and software programs. Much of this complexity is hidden from the user by...more

An Intro To CD Mastering
CD mastering is the final chance for creative input when you create a compact disc. Even though many assume that the mixing of the seperate audio tracks is the final step, a recording should ...more

Music And Data CD-R's
People who are new to computers and duplication will sometims confuse CD-R music media with CD-R data media. While confusing them is easy to do, the two are actually very different. Even if you have some experience with...more

CD or DVD Master Disk Preparation Tips
The CD or DVD master disk is the one you will provide to your CD or DVD vendor for either replication or duplication of the media. Below you will find some tips designed to help you create a...more

What you should know about CD duplication
With the increasing amount of CD duplication options for equipment, its very important that you read the reviews for the different types you are considering before you make that final...more

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