2GB is fully usable for audio but not for Technics Files. Formatting a 2GB card in the KN7000 will only address 1GB of the available space.
See the informative post by technicsplayer here : http://www.synthzone.com/ubbs/Forum25/HTML/004547.html
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Willum

After silence, that which comes nearest to expressing the inexpressible is Music.
Aldous Huxley
( especially when the music is played on a KN7000....)