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Sunday, January 13, 2008

In the defense of the dying HD DVD

Yes, it is true, in comparison to Blu-ray, which also uses a blue laser, HD DVD has less information capacity per layer (15 gigabytes instead of 25). According to SuperMediaStore.com:

HD DVD is easier and cheaper to manufacture than a Blu-ray pre-recorded disc due to its sharing the same basic disc structure as a standard DVD: back-to-back bonding of two 120 mm diameter substrates, each 0.6 mm thick.
It seems to me like the size factor, the supposed Blu-Ray advantage, is a non issue: the 30 GB dual-sided HD DVDs have been used on nearly every movie released in this format. On the other hand, Blu-ray has only released movies on 25 GB single layer discs. The size should matter when using this disks to backup data. And there, Blu-ray is clearly ahead.

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