It's been a while but a new version of the Arduitape is in the process of being designed and built. We have found new (for us) hardware that contains the audio jack, SD card, and also a MP3/Wav decoder that should make the building easier and free up memory in the Nano so that the conversion to Wav is built in. It will mean a software rewrite as well as the hardware changes so it may take some time, however please watch this space.