Korg has released a free soundpack for the Korg SV-1, Korg SV-1 Sound Pack 2.
Here’s what they have to say about it:
This second Sound Pack features a collection of sounds that were inspired by user feedback. Some of these vintage sounds include darker tine pianos, an acoustic piano with more sustain as well as a wider variety of organ sounds. Of special note, for the first time there are split sounds, including left hand basses – a nice surprise hidden in the ROM; until now! This completely free Sound Pack provides you with even more user friendly and classic sounds, only adding to the tonal possibilities that are available at your fingertips with the Korg SV-1.
See the Korg site for details and to download.