Disklavier

C/D and midi

Their has been confusion about the C/D formate in the Player Piano

industry by customers for may years. This formate is not C/D rom it

is C/D audio. The C/Ds sold by Yamaha,PianoDisc and QRS are based on

audio on one channel and "audio"on the other.The audio that contains

the info for solenoids are much like the info sent by a fax machine.

The file timing needed to send midi and audio at the same time is not

possible at present.As Spencer Chase has indicated his midi "only" C/D

rom is avalible.The cost involved in royalies to produce the C/D audio for

the player piano is much heigher that a midi file.Yamaha and PianoDisc

have formates that have lower cost royalies than a midi0 or midi1.Their

is not a case of greed but true cost in artist and royalies.

Don Dusenbury