What is the difference between CD and DVD?

Although it is certainly true that CD and DVD look good, there are several significant differences that make each electronic device more suitable for different functions. Here are some examples of how these two data possibilities differ completely from each other.

One of the first differences between CDs and DVDs to be seen is the amount of data storage that is possible for each device. A typical DVD provides seven times the capacity that is available on a compact disk. The DVD uses a number of recording layers and also store data on both sides of the device, which is a big difference in storage capacity. Older technologies associated with CD do not allow these same applications.

The device used to read data on CDs and DVDs is also aimed to suit different configurations for each device. DVD actually record data are smaller non -reflective holes, referred to as pits that are located in the groove of the surface. For compact discs, a laser that is used to scan the surface and load data,Different size and intensity that is necessary to read DVDs. This difference in the technology used for recording and loading data prevents reading DVDs and CDs on the same equipment.

The third difference has to do with the speed of data from CD and DVD. Standard DVD access to stored data proceeds much faster than compact discs. In general, the transfer rate for CDs is around 150 kB per second. Typical DVD has a transmission speed, which is about seven times larger.

One final important difference between CD and DVD is the type of data that can be stored. UDF or Universal Data Format technology supports DVD recording capacity. This means that DVD can store data, video, sound or any combination of three. CDs that did not complicate with UDF standards are unable to storage skills.