If I canít get the sequence file conversion to work, how about some help getting midi to play/record in Multi mode. I can set up my external sequencer to play all the midi into the TS-10, which uses Multi mode to record it all onto channels/tracks 1-12. But it often overloads with midi data and resets itself.

I have not bothered getting the sequencer expander, because it is my understanding that the midi input buffer is different from the actual sequencer memory that holds all the songs. You can get as large a sequencer memory as possible, but the midi input buffer will still remain small and will still get overloaded when sending in 12 full channels/tracks using Multi mode.