optical how much information 2003 summary stored flows wrap up exec paper film magnetic broadcast telephony internet thanks printable pdf i cd audio a originals b copies ii rom iii dvd references section 5 storage media for we focused on the three major industry categories compact discs and digital video these are relatively young cds roms have existed about 20 years while dvds originated 8 ago all 3 types currently thriving decline in production sale of retail has been offset by growing popularity writeable r rw meanwhile achieved fastest market penetration any recent technology table 1 hardware comparison to reach 30 million players shipped vcr 13 source entertainment group press release 02 annual title appears 2 there significantly more titles produced each year than
