Wait, did i see MPlayer for MorphOS on the newly added picture or are my eyes gone bad? :-D
The 1st picture says: MPlayer for AmigaOS though! Weird...
If this is work being ported directly from the source of mplayer, i could understand (forgetting to replace the title). If it's used with MOSEmu, then it's not a native OS4 version.
So if it's a native OS4 version, and the 1st picture shows AmigaOS in title, but the later one says MorphOS, then i think that's suspicious... :-(