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Sqad | 09:42 Fri 10th Jun 2011 | Technology
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Can one get CD's that will take 30Gb of memory (used as a backup)?
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Avatar Image ChuckFickens
No. 700MB is the limit for CDs.

4.7GB is the limit for DVDs
8.4GB for dual layer DVDs (if your drive supports them)
25GB for Blu rays
50GB for dual layer Blu rays.
09:45 Fri 10th Jun 2011
Avatar Image ChuckFickens
Sorry, typo....8.5GB for dual layer DVDs (not that it makes much difference)

The figures also don't take into account a few factors that reduce the usable size by a small amount.
09:48 Fri 10th Jun 2011
Avatar Image Sqad
Question Author
Thanks Chuck.
09:50 Fri 10th Jun 2011
Avatar Image Answerprancer
Just buy an external (removable) HD.
10:45 Fri 10th Jun 2011
Avatar Image ChuckFickens
"Just buy an external (removable) HD."

Just buy TWO external (removable) HDs. never trust a backup on one device.
10:46 Fri 10th Jun 2011
Avatar Image heathfield
A US Senate commitee queried NASA as to why the first American manned spacecraft to orbit the Earth was fitted with no less than fourteen ground communications radios. '13 of them were backups in case of failure'' they were told !!
11:29 Fri 10th Jun 2011
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