Quote:
Originally Posted by
Wiggin 
There's still some confusion as to whether the QuickTime X Player will play QuickTime VR. I'm still waiting for my copy of 10.6, so can't verify. Anyone?
Snow Leopard WILL play QuickTime VR, but QuickTime Player X does not do it, instead QuickTime Player 7 does.
When you double-click a QTVR movie, QuickTime Player (X) displays:

After accepting that, future double-clicks of QTVR movies go directly to QuickTime Player 7. There it looks identical to how it was in Leopard:

There are a number of factors that apply to this situation. QuickTime Player X is the poster child for the QTKit framework, which under Snow Leopard contains purely 64-bit code. 64-bit apps cannot host 32-bit plugins, so...
Anything requiring something from the 20 years worth of older QuickTime components are either passed to another 32-bit "server" process, for example, playing a movie using the Sorenson codec, or handed off entirely to another app, as in this case.
It's possible the VR renderer could be eventually rewritten in 64-bit code and included in the QTKit framework, but I can't imagine it's a high priority when there is so much else of 32-bit QuickTime APIs to bring in first.
So, the takeaway good news is that QuickTime VR still exists in Snow Leopard.
EDIT:
I should also mention, in case the above implies QuickTime Player 7 is the only way to view QTVR, that the fastest way to view a QuickTime VR .mov in Snow Leopard is to simply click on the file and tap space to invoke QuickLook.

QuickLook is invoked and the movie is instantly panable and zoomable (shift/control works just as it does in QuickTime Player). Also, the fullscreen button takes the VR fullscreen as you'd expect.
So, to emphasize, QuickTime Player 7 DOES NOT have to be installed on Snow Leopard to view QuickTime VR.