Although the disc media and the drives of the CD and CD-ROM are, in principle, the same, there is a difference in the way data storage is organized. Two new sectors were defined, Mode 1 for storing computer data and Mode 2 for compressed audio or video/graphic data.
Emphysema Causes. Cigarette smoking is by far the most dangerous behavior that causes people to develop emphysema, and it is also the most preventable cause. Other risk factors include a deficiency of an enzyme called alpha-1-antitrypsin, air pollution, airway reactivity, heredity, male sex, and age. The pollutants cause inflammation in the airways, leading to lung tissue destruction. 2  Close relatives of people with emphysema are more likely to develop the disease themselves. 3  This is probably because the tissue sensitivity or response to smoke and other irritants may be inherited.
Emphysema is a chronic lung condition that causes shortness of breath, a chronic cough, wheezing, and more. Anaphylactic shock. Anaphylactic shock is a sudden severe allergic reaction marked by breathing trouble, a tight throat, and more. Barrett esophagus. Barrett's esophagus occurs when the lining of the esophagus is damaged, usually by acid reflux.