I tested a couple of years ago some music OCR-programs, e.g. SmartScore,
PhotoScore, Capella, Myriad's OMeR and Visiv's SharpEye2. SmartScore
appeared to be OK, but SharpEye2 was still superior.
Here you can read my personal opinion about SharpEye2:
http://www.kolumbus.fi/eino.uikkanen/music/musicsoft.htm
Eino Uikkanen
http://www.kolumbus.fi/eino.uikkanen/gb/index.htm