DSD files and the Oppo

[simoncn]

(25-04-2013 18:53)simoncn Wrote:  This might be caused by the MIME type that MinimServer is sending. However, I've tried streaming DFF files using foobar2000 as a UPnP server, and it sends the same MIME type as MinimServer (application/octet-stream). There might be some other difference between how foobar and MinimServer stream these files, and I'm looking into this.

I've tracked down this other difference, and I'll add a fix to the next release of MinimServer. It will improve the ability of foobar to play DSD and DSF files served by MinimServer, but I don't expect it will help with playing these files on the OPPO.

Quote:Do the posts on Computer Audiophile and other sites say that the Oppo 103/105 can stream DFF or DSF files from any other UPnP servers (such as foobar or JRiver)? If so, it should be possible for MinimServer to send the same information as these other servers. Everything I've seen so far says only that this streaming works from a local file or an SMB share, wihch isn't the same as streaming from a UPnP server.

I've done some testing to find out what other media servers use for MIME types. JRiver streams DSF and DFF files with a blank Content-Type header, which is illegal according to the HTTP specification. foobar2000 and MinimServer send a Content-Type of application/octet-stream for both DSF and DFF. The OPPO supposedly requires audio/x-dsf for DSF and ??? for DFF. It's not clear where audio/x-dsf comes from, as the only other reference I can find to this is for some other format that has nothing to do with DSD audio.

If this sounds like a complete mess, that's because it is a complete mess. Whatever happened to interoperable standards?