1)   MIDI Converter Studio 6.2
MIDI Converter Studio is a handy software utility that converts MIDI to WAV, MP3, OGG and WMA formats easily. Simply drag and drop a MIDI file, and the rest is done automatically. Free download.

 2)   MID2MP3 2.01
MID2MP3 performs the conversion of MIDI to MP3, WAV, WMA brilliantly and offers a number of settings that will satisfy your needs. You will find useful the possibility of batch conversion that will spare your time considerably.