It's been awhile but I still have all of these demos that I would like to donate somewhere for preservation purposes. I no longer have the ability to maintain a site to keep them readily available to all both present and future. All demo's are in EBOOT format and work on official firmware 6.61. Any ideas?
Redump uses .ISO format, so it can't put these in its' dats.
I would suggest making an account on archive.org and upload all there.
In most cases, Archive is a good home for things like this and anyone with an interest in them can locate and download.