^ Interesting.... CDA is kind of a fake music format.
It is a windows file format used basically when ripping cd's.... The thing about cda format is that it doesnt contain the actual audio file. It provides a start and stop time to the file, and redirects the application to the actual place the file is stored.... So... That would be interesting to see if you could burn to a cd in that format... If you were actually burning the 'song' to a disc, it would have to pull the files and make it into a playable audio format. Hmmmm... Maybe it would work to create 'dead air' during play. Not sure.