patibility:
1) Make a manuscript by Keynote, and use all kinds of effect as much as you could, and be easy using all fonts.
2) When you ensure there’s not need to modify, click File—Export. Here you’d choose the first one QuickTime, and set it Manual switch, high quality exporting probably takes a longer time, but when you see the effect, you may feel it’s worth.
And Mov player exported is almost the same as the one played by Keynote. Click to switch, exactly the same effect, and no difference fonts— even on the machine without the fonts. And the movie and the sound in the slide would be packed together.
The biggest advantage of the exported Mov is the cross-platform-ability!!! Everything is OK just press QuickTime on Windows, the play effect is same as on Mac.
What you should notice is that on Windows, you should remember to use QuickTime but not other players, as only QuickTime could perfectly play the manualscript from Keynote!!

Guys who want to make PPT, I suggest you may try using Keynote+QuickTime but not PPT always, and let your work be easier, and let the effect more gorgeous!!