Pre-load movies in E-prime

[David McFarlane]

Jason,

Hope somebody else has an answer here, but you should also take this 
right to PST's trained staff at 
http://support.pstnet.com/e%2Dprime/support/login.asp .  They strive 
to respond to all requests in 24-48 hours (although latest reports 
indicate more like 10 days), and this is pretty much their substitute 
for proper documentation, so make full use of it.  And if you do get 
an answer from PST Web Support, please extend the courtesy of posting 
their reply back here for the rest of us.

That said, I really wonder if E-Prime (or any video-playing system) 
does fully load files before playing?  I would think that they all 
stream from disk through some buffer, so EP may only be trying to 
load that buffer before starting playback of each file.  So if you 
cannot fully pre-load (cache?) each file to a separate buffer (along 
with switching playback buffers on demand, which is what you would 
need to do), perhaps you could reduce the buffer so that it loads 
less at the start and starts streaming sooner?  But I do not really 
know anything about video, just guessing here based on general 
knowledge of digital systems.

Thanks,
-- David McFarlane, Professional Faultfinder

At 5/11/2010 10:51 AM Tuesday, you wrote:
>I am doing a study where we are showing multiple video stimuli in
>succession, Each movie is about 8 seconds long, and about 30Mb in
>size. My problem is that there is a long pause between each video (2-3
>seconds), presumably as E-prime is trying to fully load the video
>before it starts playing it.
>
>Does anyone know if there is anyway of pre-loading the videos at the
>start of the experiment, so that there is a minimal delay between
>videos?
>
>Cheers
>
>Jason

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