Rpmidi - FAQs
All files and documentation are offered on an *AS IS* basis and you assume full responsibility for using them.
Features over MOP 
1. Extra MIDI Effects:

     Pitch transforms
     On and Off velocities
     Custom note duration effects
     Custom start time effects
     Offset MIDI values
     Scale MIDI values
     Invert MIDI values
     Humanize MIDI values
     Eliminate duplicate controller events
     Thin MIDI controller events
     Fill MIDI controller events
     Tempo effects: Fit time, tap tempo, accelerando

2. Sync to external source feature

3. Customize patch maps

4. Track loop feature

5. Long Filename Support in Win 2K / XP

______________________________________________________