I'm in no way a tekkie and I've been buying portable hard drives - I have
more big VIDEO files and Photos than Sound Files. Last year (March) I read
an article on Cloud Storage in the Wall Street Journal and they HIGHLY
recommended a company called Code 42 in Canada that has software called Crash
Plan. It's $50 a year (really cheap for what I'm getting) and has no limit.
It actually backed up my FOUR hard Drives (PC and Three) with about 3 GB of
data and whenever I need something I can retrieve it. I'm really happy with
it. I use Dropbox for SHARING - not back up.
BTW, the folks at Crash Plan answer the phone in Canada and speak perfect
I found the review. Here it is FWIW.