Re: O.T. Computer back up question
Bill Howatt
>I want to second the comment not to use R/W DVDs. I have had them fail long, long before their quoted lifetime. Always verify after burning because even with good media there might be a dud in the batch.
I consider DVDs to be at the bottom of the media pile for backup reliability, especially long-term although I must admit I have read data CDs that were about 7 yrs old. My backups are a second HD in the machine and then a copy on a USB drive. I tend to let the copies accummulate so I have more than just the most recent one.
I do write selected backups to DVDs and keep a DVD copy at a neighbours house. I told him if I come looking for them, I either have been robbed of all my computer equipment or my house burned down.
Recently saw a TV program talking about backups and a lot of pros recommend using HDs for long-term storage rather than DVDs - just put them on the shelf, FWIW.
The wrinkle, as mentioned previously, is that the media not only has to be intact but you have to have the technology available that is still capable of reading the media. This is why I think that even though there are more events in life being recorded by digital cameras there may actually be a lower percentage of it available 80 yrs later compared to the print/negative technology.
Another comment I have on backing up data files such as photos, spreadsheets, letters and the like is to use a plain copy technique either all the time or at suitable intervals. Using a backup program the dumps the files into a large compressed container is fine but like the hardware technology problem you have to be sure you have the program that will extract your files from the container in the future. Also, a small flaw in such a container file may well render the entire contents unreadable.
I use True Image for making images of my C drive which has no important data files whatsoever stored on it. I do not believe mixing the OS with the data. I run full and incrementals with BackupMyPC which does result in a proprietary container file but I plain-copy the data files to backup media every month or two.
Bill