Millisecond Forums

I am trying to run an Inquisit 3 experiment using a video format that is .wma/.wav. However, it says unable to open file when I try to play- is there any potential reason that would cause this? 
Thanks!

That would only happen if your system doesn't have a suitable codec available to render either the WAV in question, the WMA or both.

Option two is that one or both of the files aren't located where the script expects it/them to be. Check the location and the file names given in the script for any typos.