At the agency where I work, we received roughly a TB of documentation last year. Loads of DVDs and CDs.
We've had important documentation on DVDs corrupted in less than 2 years, and there's far much more money involved with these documents than with any photo. So we regard discs as transport media only. Privately, I tend to think the same way. I use DVDs as a second-stage disaster recovery backup, and make sure to keep the DVD unit used to produce the backup together with the discs. I don't wish to run the risk of subtle incompatibilities between different devices. And yes, I've seen that happen at work. I have even seen differences among DVD players/recorders from the same mfg. and same production run (similar serial numbers). Backup is, at its basest, a continuous and iterative process. Jostein 2008/4/3, William Robb <[EMAIL PROTECTED]>: > > ----- Original Message ----- > From: "Ralf R. Radermacher" > Subject: Reliabilty of CD storage - was: Lightroom 2.0 beta > > > <[EMAIL PROTECTED]> wrote: > > > Most of my film scans are stored on CDs, and they still read well. > > Keep your fingers crossed. > > I've had serious trouble with a whole bunch of CDRs containing my > back-ups of film scan data. They were stored in specially made CD paper > jackets, the kind commonly used in books or commercial software > packages. These jackets, bought from a local CD production company, had > self-adhesive flaps and it appears something evaporating from this > adhesive has damaged the CDs in the jacket to the point that they've > become unredable. All this after about four years of storage. There was > a distinct brownish colouring of the CDs in the section whch had been > next to the flap. > > > I've had a few CDs go bad, stored in plastic jewel cases. I've always tried > to buy name brand > ones such as Verbatim or Fuji, and I have always verified the data after the > write. It's just > the luck of the draw, I guess. > I'm pretty close to buying an external RAID of some sort, and I will probably > transfer as many > of my files over to it from the CDs as is practical. > > William Robb > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
