How about a few USB flash drives.
They are relatively cheap and if your concerned about failure it should be possible to copy the data twice.

There are also a few archive formats that support repair of missing data  but I am not sure how well they would do with losing a significant portion of the data.

I wonder if something like par2 would fit the requirements.



On 11/05/2015 11:14 AM, Digiital aka David wrote:
No question go for Harddrive. BUT don't put your trust on just one drive either. The power up and power down puts a lot of strain on the drive, you are just better to leave the drive on all the time. Better option would be a NAS with RAID setup. 

I have had a few drives gone belly up, lucky I had them setup as RAID and had a backup of the backup. 


On Thu, Nov 5, 2015 at 11:00 AM, Kevin Cozens <kevin@ve3syb.ca> wrote:
On 15-11-03 03:59 PM, o1bigtenor wrote:
Looking at backing up a little less than 300 GB of files. Want to do
one copy to 25 GB Bluray discs.

I don't trust CDs and DVDs for backup. I don't think I would trust Bluray either. I have had discs go bad on me over time. For that much data I would use an external hard drive.

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