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Optical Archival - Software Recommendations?

S

sphinx99

[H]ard|Gawd
Joined
Dec 23, 2006
Messages
1,192
I'm revving up to do a series of archival burns of important data to M Disc optical media to put into archival storage (e.g. safety deposit box, 2nd out of state home etc.) using some mix of 25GB/50GB/100GB BDXL media. I'm hoping to get some advice on software; I have a few firm requirements.

1. I want to deposit files on a filesystem burned onto the discs; given that I don't know when I may need to come back to these nor the circumstances, I want to avoid any complications of requiring custom software for recovery. So, base file system should be standard ISO9660+UDF.

2. This is write-once archival specifically (not backup; there is a difference) so I expect to finalize all discs.

3. Source data is mostly going to be personal files as well as various photos / video. Ideally the software would do a decent job at splitting data from disc to disc in a set while keeping files within folders together as much as pragmatic. Ideally it would be able to generate a backup report per disc that itself could be saved away / printed / whatever.

4. I'd like to be able to specify the target capacity of each disc e.g. I'd probably want to avoid using the outer 10% (data-wise) of each disc.

5. [Very important but also greatest ambiguity for me] I'd like the software to be able to generate parity files to aid in recovery. This is where I get squirrely vis-a-vis bullet #1 above - is there an open accessible standard for generating and storing parity data, potentially file-level, within a logical filesystem that is easily groked by a recovery reader?

If anyone has a suggestion, I'm all ears!
 
Clarification, so it doesn't distract from the software question, I don't know whether I'll buy "m disc" media which may at this point be little more than a marketing term in the BDXL space.
 
For parity I use Multipar What I do for archival is encrypt my files with 7z into 1GB segments and generate parity files with a high amount of redundancy (Enough to recover two missing segments entirely or enough to regenerate multiple corrupt segments). Then I upload to Amazon AWS with the archive, the par files, and a copy of both 7zip and Multipar. I also do the same with the DVD's that I use to archive. It doesn't check all your boxes but it has worked well for me.
 
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