WLMP is not a video file. WLMP is a Windows Live Movie Maker project file which records the path to all the source files and records the transitions effects etc; but it does not include copies of the source files like photos, video clips, and audio clips. Therefore, we can only view WLMP in Windows Live Movie Maker. In order to play WLMP in iPad or other portable devices, we had better convert WLMP to a video format like convert WLMP to MP4, MOV, AVI. Below will show a step by step guide on how to convert WLMP to MP4, MOV, AVI, VOB, MPEG-1, MPEG-2, FLV, WebM, TS, 3GP, ASF, DV, RMVB, SWF, ASF and etc at http://www.idealshare.net/video-converter/wlmp-converter.html