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B. Improve the coherence of the following paragraph by adding transitions in the blank
spaces.
Move Over, DVD. Here Comes BD!
First, CDs brought digital sound into our homes. Then DVD technology brought digital sound and
video and revolutionized the movie industry. Soon there will be an additional revolution: Blu-ray discs
(list in order) it has an enormous
(BDs). A Blu-ray disc will have several advantage. (1) First,
data storage capacity. A single-sided DVD can hold 4.7 gigabytes of information, about the size of an
average 2-hour movie. A single-sided BD, (2)IN contrast (contrast), can hold up to 27 gigabytes,
(list in order) advantage is that a BD can
enough for 13 hours of standard video. A (3) Second
record, store, and play back high-definition video because of its larger capacity. A double-layer BD
can store about 50 gigabytes, enough for 4.5 hours of high-definition video. The cost will be about the
same. (4)
(additional idea), a BD has a higher date transfer rate - 36 megabits per
second - than2 today's DVDs, which transfer at 10 megabits per second. (5)
BD can record 25 gigabytes of data in just over an hour and a half. (6).
because of their large storage capacity and comparable cost, BDs will probably take over the market
when they become widely available.
(result) a
(conclusion)
1