question: difference between ecchi and hentai.

Ecchi (エッチ) is an often used slang term in the Japanese language for erotic fantasy and sexual innuendoes. As an adjective it is used with the meaning of "dirty", "naughty", "frivolous"; as a verb (ecchi suru), with the meaning to do something dirty, naughty, frivolous or to sleep together; or as a noun, to describe someone that is seen as ecchi. It is a synonym for ero (from Eros) and does not have such a harsh meaning as hentai.

Hentai (変態 or へんたい) is a Japanese word that, in the West, is used when referring to sexually explicit or pornographic comics and animation, particularly those of Japanese origin such as anime, manga, and eroge. The word hentai is a kanji compound of 変 (hen; "change", "weird", or "strange") and 態 (tai; "attitude" or "appearance"). The term is used as a shortened form of the phrase 変態性欲 (hentai seiyoku) meaning "sexual perversion". In Japanese slang, hentai is used as an insult meaning roughly "pervert" or "weirdo".

The English use of hentai is more similar to the way the Japanese use the slang term エッチ (H or ecchi), which refers to any sexually explicit content or behaviour. The Japanese seldom use the term hentai to refer to pornography in Japan. Instead, terms such as 18-kin (18禁, "18-prohibited"), meaning "prohibited to those not yet 18 years old", and seijin manga (成人漫画, "adult manga") are used. Less official terms also in use include ero anime (エロアニメ), ero manga (エロ漫画), and the English acronym AV (for "adult video").

what about this?

i have a picture of a girl that shows her boobs(sitting at her bed) but not her vagina. is that porn?

There's a section called Dreams and Aspirations which, although I think the word dream initially was picked as what you wish to strive for, has also taken on threads for dreams when you sleep too.

Methinks this post be in the wrong thread.

It's Hentai.

There's multiple ecchi anime out there that show only boobs, including full nipple flashes. Cases in point: Seikon no Qwaser and Ladies vs Butlers.

Were the videos necessary?
I mean he only gave a description but no picture?

Considering Mr. PS3 himself assumed it was hentai, yes it was necessary. He said not showing any vagina, so that should instantly give away the fact that it can't be hentai.

That is, however, if it is JUST that pic. If it's a screenshot of something, then we need to see to be sure, but that's not the point. All he asked was the difference, and hopefully, he got the right answer now.

Well my mistake, not much of a major issue. Just a small error on my part. Next time just correct someone rather than posting unnecessary stuff. >.>