Video sharing extremely slow over network

Hi Everyone, I've had a quick search through the forums to try and see if anyone has been having the same problems with me when trying to share videos (music videos, tv shows, movies etc) over a network. In itunes 7.5 I used to have no problems sharing my music or videos, now it seems like the videos are extremely slow to stream or simply won't stream at all The library shows up and music streams perfectly, but videos just seem to take forever to load, if they even load at all! As you can imagine this is a little annoying, especially if I want to sit in my theatre room with my mac mini and watch a movie streamed from my macbook pro. I've tried changing the network on my mac mini from its usual cabled network connection to using the airport, but it doesn't seem to make any difference.
Has anyone else suffered with similar issues, and if so, is there any way to resolve them?
Thanks in advance,
Best Regards,
Oliver

You already made that point. The issue is that is not helpful if you want to use Front Row and/or a Mac as a media centre. Your workaround is fine but it is klunky. The one suggested of downgrading to QT 7.3.1 is elegant but very slow as unless you can get Pacifist to work (which I could not) it means an archive and reinstall of Leopard, and downloading all the patches again with the crucial exception of QuickTime. The good news is that Leopard does this much, much better than any previous Mac OS X and all your settings and even third party preferences should work fine. The 7.3.1 installer is still available online of you Google "QuickTime 7.3.1 Leopard". This will work perfectly unless you are renting movies.
So, the choice is klunky, or an hour or so of re-installing.

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