Hi Al,
yes, I did get my PA800 repaired, after a MAJOR dummy spit. ( Aussie slang for ,I was really annoyed) haahaa. I'd miss my Korg too much, simply had to get it repaired.

I don't quite know what the .bin refers to, may or may not be the audio part, may have something to do with settings.
One of Jorgen's programs for editing Yamaha styles, used to split the style into 2 parts, one for midi, the other settings. After editing the midi part , used to have to merge them back together.

You don't really have to buy anything as expensive as Cubase,
PG Music have Power Tracks Audio, unfortunately they no longer have a demo version, but they do give a 30 day, money back guarantee, if not satisified. http://www.pgmusic.com/salesfaq3.htm
It's $49 new user, or there's upgrades from older versions. http://www.pgmusic.com/powertracks.htm

I've really gotten into the Band in a Box audio file styles since I've bought my new laptop. ( the net book I had, couldn't run them ) There's a heap of country , rock & jazz styles, that the korg sort of lacks , At least I can create an mp3 backing out of them in BIAB.NOT as good as having a keyboard that uses audio styles, but it's interesting.

Definately check into the style creation process of the Audya, if you haven't already purchased. Don't rely on EMC to give you what you want. I went thru
3 frustrating years with EMC & the SD1+.
EMC is not a good editor for the conversions. It does a bit of editing, but it's far prom perfect.
I was really pleased to see the the Audya Style Compiler software. At least you should be able to edit an EMC conversion as a midifile.
I had really no way of testing it, but I saved a conversion in Midjay Plus format, then imported it into the Style Compiler as an SD5 style. From there it should be editable as a midifile.

Unfortunately I have no access to an Audya, so don't know how well it worked.

But if the Audya hasn't got all the styles you need, it's a must to check out style creation functions for it.

best wishes
Rikki