Ocean's media player is intuitive and very easy to use. It supports MP3, AAC, WMA, MPEG-4, H.264, VOD and MOD files formats. While in video mode, flipping from portrait mode to landscape mode is as easy as clicking the down button on the D-Pad or you can simply flip up the Ocean/s screen. I've created a video walkthrough for your viewing pleasure.
Full review: Helio Ocean hands-on review