Athletes use a combination of strength training, diet, and nutritional supplementation to induce muscle hypertrophy. Muscle hypertrophy involves an increase in size of skeletal muscle through a growth in size of its component cells. Two factors contribute to hypertrophy: sarcoplasmic hypertrophy, which focuses more on increased muscle glycogen storage; and myofibrillar hypertrophy, which focuses more on increased myofibril size.
CD media. Compact discs hold 700MB of data (equivalent to 80 minutes of audio, hundreds of high-quality digital images, and small video files). Unlike DVDs, CDs are not yet available in double-sided or dual-layer formats.
A CD can hold usually up to 700mb and the DVD can hold about 4gb - Each accepts different kind of files... meaning, you can't burn a DVD with something you would be able to burn a CD with or visa versa That's about all I know... DVD technology writes in smaller 'pits' to the recordable media than CD technology.