I don't know what was the original form of the catalog but in
Archive, you can download a copy of the whole website.
And yes, of course I know the fullmotionvideo DB but you can't start a search with multiple criteria. For example, you can't sort a company by date ascending, or browsing by year doesn't display the company. A database must not display data with tabs (=1 criteria) but with colomns (=multiple criteria) with at least one input for filtering purpose (quick search with all colomns available, not just original/romaji name, + a complete search form accessible with a link) and name of the colomns sortable in ascending/descending order.
The vndb performs that with some missing things but I want a more complete db about PC98.
In fact, I think I mistook this thread with the DB I find again in the
Program testers wanted sticked thread.