This program can read the SysEx timbre dumps of these Roland LA-synthesis synths (Roland MT-32, CM32L, LAPC-1) and very accurately convert them into synthesis models that can be played using the built in Awave software synth.
Currently they can't converted to other formats - thus mostly limiting the use of this to "nostalgia".
For this to work you need to have a memory dump from the "PCM ROM" on one of these synths (which contains all of the waveform data that is necessary to use the instruments).
If you also have a memory dump of the "Control ROM" then the the factory timbres can also be read and converted to synthesis models.
To get hold of these ROM dumps you either need to own one of these synths and have the tools and knowledge of how to read the data off the chips, or you could search the net for files specifically named "MT32_PCM.ROM" and "MT32_CONTROL.ROM", alternatively "CM32L_PCM.ROM" and "CM32L_CONTROL.ROM" (but don't ask us for them - for legal reasons we can't supply them!).