would be only about eighteen seconds, and on some systems even that would have produced a message box saying, “Not enough memory to play snd.” The theory is that while one piece is playing, another is being loaded, and then the two are “seamlessly” joined together. The drawback is that this process is not perfect for all models of Macintosh due to their different sound handling routines, and so depending on which model you’re using you may hear a slight click every so often.
In the two Recordings By Mail sections, many of the excerpted catalog descriptions run over more than one card. Unfortunately, the sound will not keep playing as you go from one card to the next.