Hi, This forum has been extremely helpful. Thanks you. In 502 update the audio issues with NanoFlash files has been fixed. However, projects created before the 502 update still have issues with audio. One suggestion was to remove the PEK and CFA files form the Media Cache files so they would reconform and work. Are there any other files I need to delete beside PEK and CFA to get this work? Does anyone else have another solution? Thanks Roman