Error 4096 means, simply, that fab doesn’t recognize and thus cannot open the file…which you, no doubt, have figured out. Actually, your making things more complicated than necessary. Fab is configured to rip and burn in file mode, although gold has the capability of IFO as well. Platinum is comprised of gold and express…both capable of ripping and burning a dvd.
Express will always compress, unless the file size is smaller than a SL disc or you have enabled DL burning (make sure DL burning remains unchecked if you want to compress).
Gold will never compress and will always split to two SL discs unless the file size is smaller than a SL disc or you have enabled DL burning.
Anyway, the quick and easy answer here is to just use express or gold…only. Platinum will do it all, so why use 2-3 applications?
Hope this helps,