I usually copy the data to an external harddisk and make backups on DVD-R. I haven't checked my CDs in years. Its quite possible that they might have read errors already. The other promising technology is write-once flash with claimed 100+ years of archival. So far, Sandisk hasn't brought it to the market yet. http://www.dpreview.com/news/0702/07022601sandiskwriteonceflash.asp
I'm considering online backup with sites like smugmug, flickr, photoshelter. The data is stored in data centers so they're off-site and they also have lots of redundancy. While travelling you can make a backup from any Internet WIFI hotspot/Cafe/Satphone(if you're rich) so your data is safe even if stuff gets stolen or broken. This is also useful if you're a PJ and have sensitive photos etc.
If I'm not wrong Smugmug is the only one that allows RAW and they charge extra for it (per mb), its fixed rate/unlimited for Jpegs. There was another online backup site (Digital Railroad) that shutdown while giving photogs only 24 hrs to get their data off so I guess online storage may not be the end all solution.
I'm considering online backup with sites like smugmug, flickr, photoshelter. The data is stored in data centers so they're off-site and they also have lots of redundancy. While travelling you can make a backup from any Internet WIFI hotspot/Cafe/Satphone(if you're rich) so your data is safe even if stuff gets stolen or broken. This is also useful if you're a PJ and have sensitive photos etc.
If I'm not wrong Smugmug is the only one that allows RAW and they charge extra for it (per mb), its fixed rate/unlimited for Jpegs. There was another online backup site (Digital Railroad) that shutdown while giving photogs only 24 hrs to get their data off so I guess online storage may not be the end all solution.