Was about 3 hours into working on project (have used Vegas many times before) - all of the sudden the avi video files were gone - "media offline" - the audio associated with them were still in the project and working fine. Went to the drive where the video was stored and all the clips showed the AVI logo - rather than the picture of what was on the clip like it did before. And I was not able to open any of the avi files using any of my programs (Windows media player, real player, etc.)
The rest of the project appears fine -
Am using Sony Pro Vegas 9 64 bit with Windows 7. Computer is media ready and has been used many times before. Files captured from Sony camera - same as many times before. Project is small - only 1 minute long.
Any ideas of what would cause this in the middle of working on a project?