OutputWarnings.NoTracksSelected="You must select at least one track"
OutputWarnings.MultiTrackRecording="Warning: Certain formats (such as FLV) do not support multiple tracks per recording"
OutputWarnings.MP4Recording="Warning: Recordings saved to MP4 will be unrecoverable if the file cannot be finalized (e.g. as a result of BSODs, power losses, etc.). If you want to record multiple audio tracks consider using MKV and remux the recording to mp4 after it is finished (File->Remux Recordings)"