Cannot open webm with only audio track (no video track)

[GoogleCodeExporter]

Steps:
- Run QuickTime Player Pro on MacOS X
- Open an AVI video (or any video)
- File / Export...
- Choose "Movie to WebM"
- Turn on "Audio" checkbox, turn off "Video" checkbox
- OK and Save "test_audio_only.webm"

- File / Open and select the file you just created, "test_audio_only.webm".
- Results in alert:
      "The move could not be opened.  An invalid track was found in the movie."

Verify if audio-only is a valid webm according to the spec. 
If so, then bug is in the Import component.  

Original issue reported on code.google.com by jeffko...@google.com on 20 Oct 2010 at 2:06

[GoogleCodeExporter]

Fixed in Change Id: I2fa03f15

Original comment by jeffko...@google.com on 20 Oct 2010 at 4:47

• Changed state: Fixed

[GoogleCodeExporter]

Original comment by albe...@google.com on 8 Mar 2012 at 12:10

• Added labels: Type-Bug
• Removed labels: Type-Defect