Hello Mark,

We use DSpace as a core element in our preservation repository design,
but we have eliminated the DSpace UI when disseminating content.

When a user clicks on a handle, the handle resolves to a project-specific
script that then runs a special SRU query against DSpace.  SRU returns a
real-time mapping of the "submitted filename" to "assetstore location".

Using this mapping our disseminator scripts can build RTSP URLs that
communicate the MPEG-4 file location(s) to our Darwin Streaming Server
instance, thereby allowing us to stream the content to the user.

It sounds like you are using the DSpace UI so I don't know if our approach
is helpful, but I thought I would communicate it just in case...

regards,
Joe


-- 
J.G. Pawletko (joe)
[EMAIL PROTECTED]

Programmer/Analyst 
Digital Library Team
Bobst Library, New York University
(212) 992-9999
-- 



On 2/21/07 1:22 PM, "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:

> Message: 3
> Date: Wed, 21 Feb 2007 13:16:31 -0500
> From: "Mark H. Wood" <[EMAIL PROTECTED]>
> Subject: [Dspace-tech] Audio and video bitstreams
> To: [email protected]
> Message-ID: <[EMAIL PROTECTED]>
> Content-Type: text/plain; charset="us-ascii"
> 
> We continue to get requests for support of audio and video.  For
> longer audio documents, and video of almost any length, the average
> user isn't going to want to sit watching the thing download and his
> storage fill up; he's going to expect streaming access that starts
> almost immediately.  This suggests that DSpace needs a way to specify
> a "nonlocal" bitstream which is just a URL for such a service.
> 
> Yeah, we can dream up a metadata field and have it formatted as a
> link.  We're going to do that to start out with.  But that's going to
> be confusing to the end user, who will expect links to the content he
> found to be all in the same place, and *especially* that the form he
> most likely prefers will not be off in some unusual location on the
> page.  It would be much nicer if we could e.g. submit an item with two
> bitstreams: a nonlocal one pointing to a streaming service for casual
> use, and a local one through which the user can download and keep a
> copy of the actual document.
> 
> Comments?
> 
> -- 
> Mark H. Wood, Lead System Programmer   [EMAIL PROTECTED]
> Typically when a software vendor says that a product is "intuitive" he
> means the exact opposite.




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