MidiMeow
MIDI audio is one of those fun formats that just never go away. Many of the polyphonic ringtones used by cell phones are MIDI files. Some of the more interesting sounds of the 1990's were given life through MIDI audio. If you want to take MIDI with you, the iPod support is a little lacking. Fortunately, apps like MidiMeow handle coversion of MIDI to MP3 or OGG like a champ. The process is a little slow because MIDI is an audio description format, so your computer needs to read the file, interpret it and play the sounds as it generates the MP3. Not a perfect solution, but a small price to pay for some electronica-to-go. [Windows 9x/2k/XP $0.00]