Support of multi-session discs

[ggiopp]

Hi all.

I understand that dvdisaster works by augmenting an image with error correction data, which is meant to be burned on the disc all at once.

I was wondering if this approach could be extended to work also on a multi-session disc, i.e., you write a first session made of the data and its error correction data, then later add further sessions of the same kind until the disc is full.

In this way, a single disc could be used as storage for an automatically backup system, which would, for example, add new data daily until the disc becomes full.

Is this "theoretically" possible?

Thanks,
Giovanni

[speed47]

Hello,

I think this could theoretically be possible, but that would be an entirely new dvdisaster codec to develop (RS04?), that would add this data after each session. Or maybe create an additional session for each session with only the correction data.

However, this is not an easy patch, requires some good amount of R&D, and clearly hundreds of working hours. This is out of scope of my maintainership role as I defined it for this project: ensuring dvdisaster never stops working on current OSes, possibly adding a few tiny features here and there, and providing bugfixes. I'm leaving this open just in case somebody has the time and knowledge to work on this :)