free digital card maker

Video Camera video help!????

I was making a video for youtube wen something bad happened….the video i was making w/ my digital camera’s mem.card went full!!!! so i deleted a video on it and finished the video off….i wanna put both the videos onto windows movie maker (wmm) and make a whole video out of them…when i uploaded them onto my computer theyre ok but wen i try to upload them onto windows movie maker it says…wmm does will not accept this video it has to be in .mov .wmv and soo on… the movies are in realplayer form…how can i change the form of them into .mov or wateva quickly and freely??? some free ware or site i can use???? thanks!
I can’t find the button that says that on wmm?
Thanks…works great!!! THANKS!

most possibly wmmaker does not support ur video format. convert ur video files to avi or wmv… try Prism or Super (free) video converter apps, then import converted files to wmmaker.