<p>Don't bother with the USB card. The USB format will outlive whatever bus you choose.</p>
<div class="gmail_quote">On Jul 30, 2012 6:14 PM, "Erik Mathis" <<a href="mailto:erik@mathists.com">erik@mathists.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
par2 is some really hot stuff. I've recovered entire movies using just<br>
one of twohundred rar files completely recovering from par2. Of course<br>
it can take the better part of a day to recover a high def movie.<br>
<br>
For offsite backups, I've used these cool little drives.<br>
<a href="http://www.newegg.com/Product/Product.aspx?Item=N82E16822161079" target="_blank">http://www.newegg.com/Product/Product.aspx?Item=N82E16822161079</a><br>
I'd prolly also store a USB card with the drives (who knows if USB<br>
will be around in 10 years)<br>
<br>
In your case, I'd use one hdd for the real data and par2 files. Then<br>
also put par2 files on a DVD. If my life depended on it, I'd double up<br>
that effort.<br>
<br>
Storing of any media long term depends on of course environmental<br>
conditions. I'll let you google that tho I did fish this out of my<br>
bookmarks <a href="http://www.thexlab.com/faqs/opticalmedialongevity.html" target="_blank">http://www.thexlab.com/faqs/opticalmedialongevity.html</a> lots<br>
of good info on this subject.<br>
Those little moister absorbing packets should be included where ever<br>
you store them. Also capping off the USB connector might also be a<br>
good idea.<br>
<br>
You could always print it all out ;)<br>
<br>
Good Luck!<br>
<br>
-Erik-<br>
<br>
On Mon, Jul 30, 2012 at 2:49 PM, Phil Turmel <<a href="mailto:philip@turmel.org">philip@turmel.org</a>> wrote:<br>
> On 07/28/2012 02:18 PM, JD wrote:<br>
><br>
> [trim /]<br>
><br>
>> For really critical data, keep a local backup, a remote backup 3 states away and<br>
>> local optical backup with par2 files to watch for bitrot. At the first sign of<br>
>> bitrot on any of the media, I assume they will all fail shortly and switch in<br>
>> new media. Reburning a fresh optical disk with new par2 files finishes out this<br>
>> safety net. There are probably more copies of this critical data around, but I<br>
>> only maintain 3. These are backups, not the hot-copy used daily. If I were<br>
>> backing up DVDs or Bluray media, the original media disks would never be touched<br>
>> by anyone after the backup copies were made the same day the new media arrived.<br>
>><br>
>> The availability of par2 files has saved some important family photos and home<br>
>> movies about 5 times the last 10 yrs. dd_rescue (or the other version) is not<br>
>> enough.<br>
><br>
> Thank you! I've been thinking about writing a Reed-Solomon file<br>
> reconstructor tool, not realizing it has already been done.<br>
><br>
> "par2" is now added to my toolbox.<br>
><br>
> Phil<br>
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</blockquote></div>