Hi Diki,
main reason I started doing it, was because I knew how often EMC used to get things wrong , especially the drum tracks. I actually had the 3 boards I mentioned at the same time, so I was able to do comparisons of the conversions. You can't really blame the software when the styles I was converting were using non gm drums, & the destination instrument didn't have the same drum type available. EMC picked sopmething bland to replace it ( ie a hihat tap), & the rhythm no longer sounded quite the same.
I've always kept copies of the instrument & especially the drum maps.
Anyway I recorded the midifiles, I did actually do some audio recordings, must have been to cassete tape & eventually I had a tiny digital tape recorder, but mainly I recorded drum tracks, (drums have always been a hassle for me, trying to get the balance right between hihats, bass drum etc)

Only thing I wasn't smart enough to do , was find a better storage solution when I gave the music up back in 1999-.
Over the 3 years in storage, the floppy disks corrupted, the Atari & harddrive died.

Fortunately I got back most of my Roland styles when I bought a VA7 back in early 2000.

My Technics styles fared slightly better,
I had replaced my KN5 with a Technics piano,
converted all my styles across to the piano
( which EMC doesn't read ), so I had complete backups in piano format.

It's a pity your idea of mp3 recordings of styles, didn't take off, when you suggested it a couple of years ago.
Would have been of great help to style "Convertors".

I don't have the mp3 option in my PA800,
( I did consider buying it with the prize money I received from the Korg forum styles competition) I've never really gotten into recording though, except for the couple of Ejam tunes & they were done in PT12 with a lot of hassles. haahaa

best wishes
Rikki