Hi
I want to store photos for the long term on DVD or CD. Capacity is not a problem but would a CD be better than a DVD for long term survival?
I am thinking that more data per given area would be more at risk than
less data over a given area. Obviously I am considering only top manufacturers etc.
Thank you for your help and comments.
Thanks for your response. I did read the reports but, unless I am mistaken, it did not actually compare DVD v CD. It did mention gold plated finishes are better which, as far as I know makes Sony the leading contender.
Let's give it a 2 percent difference in aging when material is stored properly. The studies are done so you can google more if you want. I hope these are sufficient.
Was there some more than this required?
Bob
I do not intend to sway your selection. However, this is my experience. I have CD media that I have had info stored for a period of 10-12 years. Yes, they are still readable. However, If I were to redo them I would use the DVD media instead of CD. The biggest problem I have had is the difference between the Recording programs themselves. Such as, NERO and ROXIO. They use different recording principles. I personally like ROXIO but they are not as readily readable on machines that use NERO. I believe both provide a utility to read the other format though and should cause you no trouble. Assuming you use the same recording program you should not have trouble storing your data on either CD or DVD. I find DVD better myself. Also, I would suggest periodically copying your data to more recent disks instead of remaining dependent upon the older disks. The technology is always improving as you know.
From bitter experience of losing family photos that can not be replaced I have learned not to leave any data on a DVD any longer than 3 years. I have DVDs made in 2004 that are unreadable. One brand I personally have had consistent problems with is Verbatim. Failure rate 40%+. If the data is important I would backup every two years. As with many people I have had problems NERO and ROXIO. I currently use NERO and have found at times data backed up with ROXIO can not be retrieved. There tech support was less than helpful blaming everything from bad media to PC. In closing after your DVD burning program has verified your data always check it on another machine to make sure before you delete those files. I have found in more than a few cases so-called verified DVDs were unreadable on other machines. It was a problem both with external DVD writer and program.
Be paranoid and figure it will go wrong. Be prepared.
Take Care
Al
I ran into the 2 to 4 year issue as well. The owner was miffed to find that not only the media can age but so do the CD/DVD drives.
We installed a new DVDRW drive and all his disks came back and read just fine.
Bob
As far as I can tell there are some vendors like http://www.cdstorage.com that regularly update on these items, but the reality is this is an old subject.
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