Backup media - time to move on from DVDs?

[Alastair Stevens]

Hi Guys - some of you might remember my 'world famous' backup system
(shout if you want a copy of the scripts), which has several main
components:

* Firstly, an rdiff-mirror copy of all my important partitions on an
external hard drive, with 20+ day rollback capability
* Secondly, a script that creates squashfs archives of said
partitions, on a separate portion of the ext hard drive, which are
then burned to rewritable DVDs weekly (or whenever I get around to it)
* Thirdly, some areas (eg music collection, photo collection) get
burned directly to DVDs, so they can be easily browsed elsewhere etc

Now, this DVD thing is getting a little slow and old-fashioned, not to
mention that I need more and more of them, especially used in multiple
rotations. What should I be looking at instead?  It struck me the
other day, when acquiring a new camera with an 8GB SD card, that these
little chips might be an, erm, cheap as chips solution - are there any
downsides?

I mean, a 16GB SDHC card can now be had for <£20, and could replace ~4
DVDs in one hit. 3 of those in rotation gives me a very neat solution.
How durable are SD chips though?  They'd only be wiped and written to
once every few weeks, so cycling isn't really an issue, and they'd
obviously be stored somewhere safe :-)  Am I missing anything?

Cheers
AL

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ALASTAIR STEVENS
* Web - www.altrux.me.uk
* Blog - www.altrux.me.uk/blog.html