zx81tape is a command line utility that converts the source files to audio files located in the same directory as the source files. The source files are untouched but existing target files will be overwitten.

-a ouputs 8 bit signed aiff files
-w ouputs 8 bit unsigned wav files
Default behaviour is -a

(c) James Weatherley 2004
james@weatherley.net
http://weatherley.net