[Paraview] making movies in ParaView

[wang]

Hello ParaView users,

I have a question over making movie in Paraview. Some time ago I could 
make avi format movies in ParaView. But now it says "avi format is 
unknown". Here is the error massage shown up:

ERROR: In 
/builddir/build/BUILD/ParaView-3.8.0/Servers/ServerManager/vtkSMAnimationSceneImageWriter.cxx, 
line 402

pqAnimationSceneImageWriter (0xab40c38): Unknown extension .avi


What now it makes are many jpg files. I don't know how to make a movie 
form these files. Does anyone know?

Thanks in advance!

Xueli