The differences between CDs and DVDs are data density and disc construction. A standard DVD holds 4.7 gigabytes of data, whereas a standard CD holds 700 megabytes of data.Know More
The data on CDs and DVDs is recorded in a spiral that starts at the center of the disc. DVDs hold more data because they have a longer spiral on which to record data. This is made possible through the use of a narrower laser.
CDs are made from a single layer of polycarbonate with an aluminum recording layer on the top of the disc. DVDs are made from two thin layers of polycarbonate with an aluminum recording layer between the polycarbonate layers.Learn more about Television & Video
The BMG Music Service 12 CDs for the price of one works by offering a contract to the purchaser that requires the purchase of a single CD at regular club prices in order to qualify for the other 11 CDs, according to BMG. Shipping is applied for each CD received.Full Answer >
There are numerous differences between television and radio, namely that television broadcasts transmit images and sound, whereas radio broadcasts only transmit sound. The success of radio catalyzed a race from investors to research and develop the more advanced broadcast system of television.Full Answer >
The main differentiating factor between DVD players and Blu-ray players is the laser technology used to play back and record data. Traditional DVD players utilize a red laser while Blu-ray players read from and write to the disc using a blue laser. Blu-ray players are reverse compatible with DVDs but a DVD player cannot be used to play Blu-ray discs.Full Answer >
To clean a CD, hold the CD under running water, use liquid soap to remove spots from the CD, remove the excess water by shaking the CD and allow it to air dry. This process takes about 20 minutes and requires soap.Full Answer >