text: Windows Movie Maker prefers .WMV and DV-AVI files.  If you try to import other types you might get an error, or they might import and not work.  In these cases it is best to convert the files.  One choice is 'Windows Media Encoder' a free download from Microsoft.  It will convert many file types to WMV.\n\nAgain it depends on the file type, so if you need specifics on how to import a file, determine the file type and then go to www.papajohn.org > Import Movie Source Files > Video and look for the file extension.\n\nOr if you need more help, post the exact file type and the errors you are getting on the WindowsMovieMakers.net forums.