[vlc] Re: Does VLC work without internal DVD Drive in iMac ?

[Philip Edelbrock]

G3 iMac's don't have USB-2.0 (Apple introduced USB 2.0 rather late).  So 
eventhough you plug in a USB-2 DVD drive, it will only work at USB-1 
speeds which may be too slow for DVD playback on an iMac?  (In theory, 
12Mbps USB should be fast enough, but I'm not sure if it's true in your 
case.)

Also, I've been playing with optimizing MPEG-2 playback on MacOS-X.  For 
some reason, the Quicktime engine does not use hardware acceleration 
(eventhough on OS-9 it does).  But, if you use OpenGL as your video-out 
method, it flies.  I can play HiDef 1080i (18Mbps) streams on my G4 
laptop with some frames dropping, but reasonably watchable.  (This 
assumes that your 3D video hardware can do hardware YUV422 conversion.)

BTW- Some good news is that Tiger (10.4) is supposed to increase the use 
of hardware acceleration of Quicktime codecs.  Has anyone tried VLC on a 
Tiger pre-release?


Phil

Felix Kühne wrote:
> Hi Anne,
> VLC should read your DVD flawlessly from an external drive. The only 
> problem is that your processor might not be fast enough to decode it, 
> but just try it out. From my experience, a 500 MHz G3-iMac is just fast 
> enough. On slower ones, you'll most likely experience choppy video, i.e. 
> dropped images. In any case, you shouldn't run any large applications 
> while playing DVDs.
> 
> Kind regards,
> Felix
> 

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