It may be that you don't have the right codec to open the avi files. I had the same problem. It didn't apply to all avi files, just those I converted using winff. The avi files I downloaded from my camera opened fine in Windows Movie Maker.
After googling for about three hours, I finally on settled on downloading a codec pack called Combined Community Codec Pack (CCCP). Various others are recommended but this one sounded the most reliable to me.
I was still nervous (the sickle put me off), so I set a restore point before downloading CCCP, and I literally held my breath when after installing it, I reopened Windows Movie Maker and tried to import a converted avi file. I thought it wasn't going to work and I was going to get the horrible frustrated feeling back. I was wrong! It worked! My avi was imported and sitting there ready for me to go to work on it.
Go here: http://www.cccp-project.net/
IMPORTANT: Download insurgent first and check for any previous installed codec packages on your computer. It found one on mine, but it was listed as 'unistalled' so I didn't have to do anything.
Then download CCCP.
The whole thing will take about 5-10mins.
Read the info. Its not a waste of time.
I hope this answer helps many thousands and saves some hair!
You need to configure your computer to open files from an earlier version Windows Movie Maker.
The files have to be compatible with Windows Movie Maker:.aif, .aifc, .aiff, .asf, .au, .mp2, .mp3, .mpa, .snd, .wav, .wma
That is not a file format. Undf stands for 'undefined file'. Files used in Windows Movie Maker have to be compatible with the program as well.
You can open any version Movie Maker file in Windows Live Movie Maker (Windows 7) as long as you have ALL of the original source files used to create the project available on your hard drive. If the source files are not accessible, then you will find RED X's through the clips on the Time-line.In other words, it is better to Publish (or in the case of Movie Maker 2.1 version - Finish the Movie) before opening it in Windows Live Movie Maker.
Once you have downloaded Windows Movie Maker the easiest way to open it is:> Click Start, All Programs, Windows Movie Maker (icon) from the listIf you can't see an icon for the program;> Click Start, Computer, Local Disk (C:), Program Files, Windows Movie Maker, MOVIEMK (Application)Or,Command Prompt - type in: MOVIEMK.exe
You can't get any projects from Windows Movie Maker (Vista) to play on Windows Movie XP. Windows Movie Maker project files (MSWMM) need to access the original source files in order to play the project. Therefore, if the original source files are not available on the system you are attempting to open the project file on, then the can't be displayed.The only way you can get a Windows Movie Maker project file (no matter what version) to display on another computer is by first Publishing or Finishing the movie. This process mixes down (exports) audio and video properties into a Standard Viewing Format.
If you have a PC (personal computer) and not a MAC, you already have Windows Movie Maker on it. If you have Windows 7 as your OS (operating system), then you have Windows Live Movie Maker, an Essential product. To find the version of Movie Maker you have, and to open the program, click on the Start Orb and type Windows Movie Maker in the Search bar. The program icon should appear in the list that is generated. Click on the icon to open your Movie Maker.
There are three ways to install Windows Movie Maker 2.1 for Windows XP on Windows 7.1-First on Windows XP go to programs on C drive and copy the Movie Maker program file and paste it into your My Documents or Downloads folder. A copy of the Movie Maker program file should now be in your my Documents or Downloads folder where you have pasted it.Go to where you have pasted the Movie Maker file,right click on the file with your mouse and click send to zip folder. This creates a zip file with all the Movie Maker program files inside. Now to install Movie Maker 2.1 on Windows 7 you can either-1-Transfer the Movie Maker zip file from your Windows XP computer to your Windows 7 computer using Microsoft shared View or Team Viewer.Which lets you transfer files from one computer to the other computer. Or-2- Upload the Movie Maker zip file to a file sharing and storage site online like Mediafire. And then download it onto your Windows 7 computer. Or-3-Transfer the Movie Maker zip file onto a USB thumb drive from your Windows XP computer and install it onto your Windows 7 computer that way.Once you have got the Movie Maker zip file onto your Windows 7 computer using one of the three methods above. Open the zip file and extract the files to Programs on C drive and make a new folder. Rename new folder Movie Maker 2.1 so that it does not conflict with any other versions of Movie Maker you have installed.Now send the Movie Maker short cut to your desktop and click on it. And now Windows Movie Maker 2.1 is working on Windows 7. And the web cam feature will also work.But please note, you must have Windows Movie Maker 2.6 installed in order for Windows Movie Maker 2.1 to work. This is because Windows Movie Maker 2.1 uses some of the dill and program files of Windows Movie Maker 2.6 in order to run. But as long as you have Windows Movie Maker 2.6 installed,then Windows Movie Maker 2.1 will work on Windows 7.Windows Movie Maker 2.1 works on Windows 7 without any problems. And can be used alongside other versions of Windows Movie Maker,Windows Movie Maker 6 and 2.6.
You can Rip media from the CD to use in Windows Movie Maker.To rip a CD:> Open Windows Media Player> Click on Rip (top menu)> Choose a format (example: .mp3)> Select destination> Click RipOnce the files have been ripped to your computer, they can be imported into Windows Movie Maker.
NO. The only program that can open a MSWMM (Microsoft Windows Movie Maker) file is the Windows Movie Maker program. A MSWMM file name extension means the file is still in project form. Until the MSWMM file is exported/published/finished in a Standard viewing format, it can't be read, edited, emailed, uploaded or burned to CD/DVD.
Windows Movie Maker can't open .vob files.Vob files must be converted to one of the following file formats before they can be imported/edited in the program:.asf, .avi, dvr-ms, .m1v, .mp2, .mp2v, .mpe, .mpeg, .mpg, .mpv2, .wm, .wmv
More details on why the program won't open are necessary to answer the question. What version of Windows Movie Maker are you using?