Manga 2.5 was a service by Happinet Corporation that took various manga series and adapted them into full color motion manga with voice acting and little animation. Some of the titles featured were Mythical detective Loki, otogi soushi, colormail and more. It's noticeable that the English voice acting was done by high profile American stage actors but had wooden and unnatural performances.
The manga videos were allegedly available on Itunes, Renta, and crunchyroll but have since been deleted from all of those platforms. The Manga 2.5 youtube channel still has trailers and extended previews of some of their content.