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Old Nov 15, 2004, 8:14 AM   #11
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I tend to like dvds myself, but checking that many files can be a pain. so i use dvd sig. http://members.ozemail.com.au/~nulif...ezip/freeware/
automates the process of checking integrity; all in all quite painless.
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Old Nov 15, 2004, 8:51 AM   #12
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Thanks for the tip on that program. Very handy.

Eric
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Old Nov 15, 2004, 10:09 AM   #13
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If you use DVD's for backup, a word of caution.

I used to burn all my images to CD's. Most of these CDs were multi-session in that I added to them periodically until they were full and then started another. I could read these multisession CDs just fine.

When I got my DVD burner, I found that I could burn multi-session DVDs so I copied my CD collection on to DVD's but a little voice said don't get rid of the CDs just yet. Over the weekend, I discovered that I could only read the first session on the DVDs. I tried many things to extract the files from the other sessions but to no avail. Roxio 6 acknowleges that there are five sessions on one of the disks and even has the ability to copy those sessions to .iso files. I did that but the iso files were not useable.

I finally went on line and found a program called IsoBuster whose purpose is to recover "unrecoverable" files from a cd or dvd. I tried it on my WIN98SE system and it didn't work. It reported numerous read errors. I then tried it on my wife's laptop with WIN XP Home and it worked great. I was able to extract all the files from the DVD and copy them to CDs.

Needless to say, my confidence in DVDs for data storage has dropped significantly.

Cal Rasmussen
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Old Nov 15, 2004, 10:52 AM   #14
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Willyjeen wrote:
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I was referring to the best format for storing on a cd for lastability (is that a word!
I think longevity is the word you were after
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Old Nov 15, 2004, 12:08 PM   #15
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calr wrote:
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Needless to say, my confidence in DVDs for data storage has dropped significantly.
I haven't had that experience, yet, but I also don't do multisession on my dvd's. Haven't had problems reading back from them. Since I first back up on cd's I can afford to wait a while until there are enough files to fill a dvd. I just sellect an approximate ammount of pictures that will fit in a dvd, then burn it single session. I just found out B&H has the TDK armored plated dvd's on sale, I may give those a try
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Old Nov 15, 2004, 12:12 PM   #16
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Personally -

I like "Lastability"it has a certain authority to it !!
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Old Nov 16, 2004, 5:58 PM   #17
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Cal, additionally with _any_ optical media try to avoid udf or packet writing. It is probably the most reliable way of losing all your files. :evil: I haven't had those problems(yes), but keeping them in a cool relatively dry environment and taken in and out of jewel cases as seldom as possible is still the best bet.

In general the strategy i use is a copy on dvd + 2 copies on a pair of harddisks. Added in checking regularly there isn't much of a chance of loss of the catalog.
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Old Nov 17, 2004, 1:22 PM   #18
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well - it's been a couple of days and I still like "lastability" - so there!
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