Go here to download some more SoundFonts or the Sonatina Symphonic Orchestra SFZ package compiledby Mattias Westerlund. Here you will now find the great 1.85GB Music 7 GM SoundFont by Cose Vidal. Here you can also find the two most common compression programs used: sfArk and sfPack.
Alternative download mirrors (may not have the latest version, though):
Notes
SynthFont and other tools for Midi and SoundFonts
»» Here is an Italian version of the "Introduction to SynthFont" document (PDF)
»» The update package is NOT enough for installation of SynthFont the first time.
»» If you are unable to create WMA files the reason may be that you do not have Windows Media Audio/Video codecs installed. Here is an installation file, (for XP only).
»» The VSTSynthFont file is NOT required by SynthFont or Viena. You may want it if you have a sequencer that supports VST Instruments.
»» Standard users may have Windows set to hide Dynamic Link Library files in Explorer. Thus, VST plugin files may not be visible.
SyFonOne Midi Port Player (V1.030), based on the SynthFont technology. Go here to read more about it. Download installation package.
VSTSynthFont (V1.073) installation package. Install into the folder where you keep your VST files. You may then need to update your sequencer's list of plugins after installing the plugin file.
in_aSyFon (V1.020) as an installation package for use with Winamp (5). Install the plugin in Winamp's "Plugins" folder.
Sf2Patcher (V1.021). This is a simple tool to combine several smaller SoundFonts into one large. It can also be used to update a SoundFont with new presets, for example.