A recording item or recording consists of the instructions, the prompt item, and a comment. Instructions and comment are optional. A prompt item consists of text, an image, or an audio clip. The text may be stored in the recording script, or fetched from an external file or URL. Images and audio clips must be loaded from external sources, e.g. a file or a URL.
A recording script is stored as an XML document. The DTD is given in Appendix A.