1. mkvalidator 0011TS.mkv
  2. WRN0C0: First Block for video track #1 in Cluster at 5663321 is not a keyframe
  3. WRN0C0: First Block for video track #1 in Cluster at 14063747 is not a keyframe
  4. WRN0C0: First Block for video track #1 in Cluster at 22504112 is not a keyframe
  5. WRN0C0: First Block for video track #1 in Cluster at 31003740 is not a keyframe
  6. WRN0C0: First Block for video track #1 in Cluster at 39367787 is not a keyframe
  7. WRN0C0: First Block for video track #1 in Cluster at 48174775 is not a keyframe
  8. mkvalidator 0.3.4: the file appears to be valid
  9. file created with Lavf53.2.0 / Lavf53.2.0