New Format: Comic books on CD/DVD
They're pretty obscure now, but in the late 90s/2000s before Marvel unlimited was a thing, the company (and many others) officially released their comics on CD/DVD. The discs were basically solely a collection of printable .pdfs that functioned the same way as an omnibus, except they could hold many more comics.
https://en.wikipedia.org/wiki/List_of_comic_books_on_CD/DVD
I was just wondering, could this be added as a new format to the database? I know they're not really a 'book' but if digital chapters are a format, it would make sense for these to be as well.
They'd also have a functional use as well: omnibuses are important to the database because you can keep track of the comics you've already read in them in the 'collects/reprints' section. A disc that collects, say, 60 issues of ultimate X-Men could also be useful for this purpose as you could add the 'comic on CD' to your collection and all the collected materials to your read list.