When using the BR-600's Track Export function, the selected track is converted to WAV format--this requires memory space on the BR-600's compact flash card. When the card is full and you are unable to perform the Track Export function, you may use the BR WAV Converter software to convert your track(s). This will use your computer's hard drive space, instead of the BR-600's memory card, to convert the WAV file. The following link will guide you through using the software: