>>3418
There's thousands upon thousands of tv specials, films, OVA, etc from 1970-2001. Unless you are very specifically obsessively collecting these rips and watching all of them then, no, it's not possible. There were so many thousands of OVA especially and most of them are forgotten about.

A lot never even got DVD releases since they are from companies that went under, or are obscure enough no one has cared enough.

Do you follow Lonelychaser, Kineko, Oprhan and others? Pretty much all of those are new to me.

I thought I knew the OVA era, but I had only seen the dozens of most notable. Truth is, most of these are pretty forgettable or cliche as well so you are not missing much. The big famous series all got DVD/BD releases, so everything else is the shit even Japan doesn't care about.

Idk, what's your reference frame for "obscure"? Because to the wider anime fandom, all but a few dozen titles from before 2000 are hella obscure. Uchuu Senkan Yamato ranks at #4304 most popular on MAL with 30K members, only a third of those listing it as completed. Most modern anime fans didn't know what Urusei Yatsura was before the remake.
If you're into cel anime, those are the most obvious shows in the world of course. But when was the last time you heard something about Skyers 5, Wakakusa no Charlotte, Rainbowman, Moeru Onii-san or Teki wa Kaizoku? There are a few hundred people outside of Japan who care about these titles. They're obscure, a niche within a niche within a niche. This is also reflected in how many titles remain untranslated. Having been available for decades but not having an English translation isn't exactly a sign of popularity.
And then there's the stuff that isn't even in the databases of course. People are still digging up new stuff with some regularity, be it educational anime, virtually unknown OVAs, weird local stuff, whatever. Oh, and the anime that's just lost. Most pre-1945 anime is lost forever, so those early cel works (a lot of the very early films are from before cels became standard) are forever obscured.

So yeah, most of cel anime is obscure. And even if you're in the know, there's still more obscure titles to dig into.

>>3420
If they haven't bothered with a modern DVD/BD release, it's probably obscure. Though there's a slow steady trickle of new BD releases of old series.

Did anyone give a shit about Kentauros no Densetsu? It's not offensive, but it's not very good either and the art and animation are ho-hum. This is very typical of these obscure OVA/Film from this era. One thing I do appreciate though, is that the subject matter seems way more varied. Oh yeah, manga about bikers and turn that into an animated film about bikers. Would anything like this get made at all? I strongly get the vibe that this was meant to be a live action film from the way the script is written and how it's directed. Probably couldn't secure funding, so a cheap animated film was made.

https://myanimelist.net/anime/17339/Kentauros_no_Densetsu

>>3418
Well goodness gracious I’ve actually seen this short last year, it’s quite simple about the story of the rise of a pop star and I’m totally convinced this was done by the JEM animators, I liked it, short and sweet and essentially one big music video. Also I appreciate that the incarnation of Dracula they used looks like the christopher lee version from the hammer films

Lol stealth rec thread

>>3420
>Most pre-1945 anime is lost forever
At least one can assume that the percentage of anime lost is very small compared to the amount of anime permanently archived, by virtue of how hard it is to just produce anime, and thus the limited quantity of anime that could be lost in the first place.
Manga? Manga is fucked.
To give you an idea, when in 1977 Kodansha started the massive Tezuka Complete Series, or the Tezuka Black Label, it was estimated that Tezuka had penned over 700 manga; the Complete Collection has 400 titles, meaning that about half of what Tezuka himself wrote is lost.
The Black Label took 20 years to print every manga they could find and some Tezuka remade from scratch (for example, the original printing of Shin Takarajima is lost, the one published by Kodansha was remade by Tezuka in 1984) and that's the best Kodansha could do.
It's not an exaggeration to think that there are more lost manga than known manga

The rise of listing sites and torrents have eliminated obscurity. That said, there is a LOT of obscure cel anime out there, and it's probably not possible to watch it all in a lifetime.
There are a lot of long comedy and shoujo TV series that are so generic and bland nobody's touched them, and you'd have to be insane to sit through them. On the OVA/movie side, there are a lot of crappy delinquent, romance, and seinen action OVAs with middling animation, one-note characters, and reused, watered-down stories – none of the insane stories, great animation, cool robots, and violence people think OVAs generally have. You will find some obscure historical movies and OVAs, which tend to be good, and many of which haven't been ripped or subbed. But that's it.