There is a list of the known bugs, which Emu fixed from version 2.5.
EMU SP12 V 1.8 Debug Diagnostic Test Firmware Sampler EPROM For E-MU SP-12 Chip
EMU SP12 SP-12 Sounds For Alesis HR-16 / Hr-16B Eprom Upgrade Set OS ver 2.0
Casio RZ-1 SOUND KIT EPROM with Sp12, DMX, TR-808, TR-909 RX-11 Sound Chip Ic
E-MU SP12 SP-12 Sound Eprom for KAWAI R50 - R100 Vintage Drum Machine R-100 R-50
Emu E-Mu Drumulator OS Version 3.0 Firmware OS Update EPROM MIDI MODIFICATION
EMU sp12v 1.8 debug Diagnostic Test firmware Sampler EPROM for e-mu sp-12 chip
