multiple read/write heads?

Digital Viper-X-

[H]F Junkie
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Joined
Dec 9, 2000
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seeing as HDs are the slowest link in the chain

why havn't we seen a platter with multiple read/write heads?
 
Greater complexity and cost. More mechanical parts probably means less reliability too.
 
The hard drive would need some crazy coordination of the two to work together without screwing up, the drive would be larger, hotter, louder, need more power, and like the guy above me said, it would be more likely to fail.
 
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