Hi
I used to have a WK-1800. I like them very much. It's true, you can not save the wk-1800 sequence (aka song) as an SMF (either 0 1 or 2). In order to convert the sequence into standard midi, you have to run a MIDI out of the Casio to a MIDI in on a PC sequencer. Problem is, all data in all tracks will load to the one receiving track on the sequencer. Then you'll need to delete all messages in the track that originated from other tracks. This requires the pc based sequencer to have this functionality. Let me try to explain:

Lets say your songs has
Piano on part/track 1
Strings on part/track 2
Flute on part/track 3
horns on part/track 4
drums on part/track 10

The PC sequencer (all I've worked with anyway) only allow you to selecet one track on the PC to record to. Lets say you select track one in the PC to record to. Now you should probably also sync the PC sequencer to the Casio. Hit record on the PC and it should enter a wait state. Hit start on the Casio and your song plays and the midi data streams over to the PC. But data from all part/tracks on the casio will merge into track one of the PC. When the song is finished, you would have to, using the PC sequencers ability to delete selected messages, you would delete all messages from track 2, then from track 3, then from track 4 and then from track 10.

see what I mean? It's a pain in the butt. but works. That is the only way I've ever been able to convert my Casio WK-1800 sequecnce in the .cs3 format to smf.

There may be better pc sequencers out there that I've not used that might filter the incoming midi messages for the parts you don't want to record. But you still would have to replay your song for every track you used.

That's the jist of the situation. What would have been really cool if Casio or if someone would write a program to convert the .cs3 file to smf format. But that's never happened as far as I know. That trouble is why I eventually sold my wk-1800. I'll probably pick up a wk-1630 someday because I did enjoy the wk-1800 but didn't find the disk drive all that usefull because of this conversion problem.

Best wishes
Bob
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[This message has been edited by RW (edited 12-23-2004).]