| 1 |
Am Mittwoch, den 26.11.2008, 15:26 +0100 schrieb Florian Philipp: |
| 2 |
> Jorge Peixoto de Morais Neto schrieb: |
| 3 |
> > On Tue, Nov 25, 2008 at 7:15 PM, Joerg Schilling |
| 4 |
> > <Joerg.Schilling@××××××××××××××××.de> wrote: |
| 5 |
> >> James <wireless@×××××××××××.com> wrote: |
| 6 |
> >> |
| 7 |
> [...] |
| 8 |
> > As for my photos, I can back all the collection to a single DVD (and |
| 9 |
> > to a second one, since I keep hearing that DVD-Rs are unreliable), and |
| 10 |
> > since I don't take new photos every week, this solution is fine. |
| 11 |
> |
| 12 |
> A second DVD-R won't solve the problem because optical disks degrade |
| 13 |
> over time and the second one will degrade just as fast as the first. |
| 14 |
> What you need to do is to check the disks periodically (once a year is a |
| 15 |
> good time frame). |
| 16 |
> I myself would add a textfile with md5sums for all files to the DVD so |
| 17 |
> you don't have to check them visually. |
| 18 |
You can buy so called "archival grade" DVD-Rs that should work for 10-20 |
| 19 |
years in a good environment. There are hugh differences between |
| 20 |
products. In germany you can buy very good ones from Verbatim for around |
| 21 |
2€/disk. |
| 22 |
|
| 23 |
Also keep your photos on 2 HDDs (in different places), and copy them to |
| 24 |
new HDDs when you buy new ones. Nowadays you buy new HDDs every 2-3 |
| 25 |
years or so, and normally the old ones should not have failed until then |
| 26 |
(at least not 2 disks on the same sectors). |
| 27 |
The MD5/SHA-checks should be done before copying to the new disks, so |
| 28 |
you can be sure to copy only healthy files. |
Archives