| DVDs offer an improvement on image quality over | | | | As the data gets transferred to the lens, codecs are |
| VHS. They rapidly overtook VHS as the dominant | | | | used to decompress the highly compressed data. |
| format for home movie viewing. Nowadays, DVDs | | | | Nowadays, most of the DVD players come equipped |
| are also a major medium of data storage because of | | | | with MPEG- 4 codec as compared to the old MPEG-2. |
| their extended storage capacity and better read | | | | After the decompression, the data is transferred to |
| writing speed when compared to traditional CD's. | | | | the television sets to which the DVD player is |
| DVDs can be described as optical disc with high | | | | connected. |
| density optical data. | | | | The most recent technological addition to DVD |
| DVD players are gadgets which are used to read the | | | | players is the 4.1 Dolby surround system. This feature |
| data from these optical discs. The data can be in any | | | | provides for speakers with DVD player itself which |
| form ranging from images to movies. Here is a brief | | | | can be placed in accordance with the room to give a |
| insight into the working of these players. | | | | surround sound effect. The speakers can be wired or |
| DVD players are equipped with an optical lens, | | | | wireless depending upon the budget and requirement |
| emitting laser beams which strikes the sectors on the | | | | of the user. |
| DVD and gets reflected back. The entire disk is read | | | | Most of the commercially available DVD players are |
| by using a high power motor which rotates the | | | | accompanied with a fully equipped remote control |
| optical disks at high speeds so that all the sectors | | | | and may also have an inlet for USB port which allows |
| get passed over the optical lens once transferring | | | | for connection of USB pen drives to view images, |
| data to it. | | | | videos or playback audio tracks on the player itself. |