What is the meaning of Check-in and Check-out that often appears in explanations of SD-Audio?
Check-out means to write music data that has been recorded to a personal computer from CDs and EMD (and compressed by AAC and MP3 systems) to a SD card. Conversely, returning music data from a SD card to a personal computer is called Check-in. The number of times for checking-out music content recorded to a personal computer is limited to three. However, if the music content checked-out once is checked-in to a personal computer, it can then be checked-out again.
