Like for everything else there are various qualities in USB sticks.
Perhaps I have been extremely lucky up to now... but never had any problem!

In times I had more trouble with DVD's and burners than with USB keys:
     . burn a DVD for someone and then it cannot be read on her PC or 
DVD player (heads alignment)
     . a scratch on the medium -> you are done :-(

I rolled once on an USB stick with my chair and it still works! I doubt 
a DVD had survived this attack.
Not taking the price in account: this is a rewritable device - perhaps 
not forever but all depends on how long you want to keep your data...
I recently read an interesting article about this: your data can safely 
be written for the eternity but... in ten years there will be no device 
to read it!
As an example, try to find a brand new PC with a disquette reader...

Regards,
midi-pascal

On 15-02-23 04:33 PM, Thierry de Coulon wrote:
> On Monday 23 February 2015 21.54:54 midi-pascal wrote:
>> Sorry to intrude but...
>>
>> Did you ever thought using USB keys?
>> It costs (almost) nothing, it is fast and you can rewrite the medium as
>> often as you want!
>> Here in canada you can find a 64Gb USB stick in supermarkets under CAN
>> 50.00$
>> I have made my backups on USB sticks (not even compressing the data)
>> with rsync for years without any problem.
>> I bought 4 64Gb sticks and rotate them.
>> I had to restore some times and never had any problem.
>>
>> Just wanted to add a view on an easy storage medium here...
>>
>> midi-pascal
> No reson to be sorry. But I've seen to many USB keys die, they are cheap and
> unliable. M-Discs are said to be good for 500 years... although I'll be dead
> long before anyone knows if that's true :)
>
> Thierry
>
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