Originally Posted by DeepakG
Read all the pages; however could not find an answer:
I have an Acer H340 which is DLNA enabled but the oppo only picks up .mpg formats and nothing else (ie no mkvs show up in MediaServer\\Video) - any reason why this would be? I am pulling my hair out here..
The simple answer is that the DLNA mediaserver app in your ACER does not support MKV, or likely AVI or OGM either.
At root, DLNA is a consumer electronics format invented to ensure that consumer generated files from 'standard' home electronics like digital still and movie cameras, televisions, cellphones, etc. can all interchange. By 'standard', that means MPG, MP3, JPG, PNG and so forth. FLAC, MKV, AVI, TS, OGM and the like are considered by the consumer electronics industry to be 'piracy enabling' formats. The odds of finding them supported in a consumer interoperability format for streaming files are vanishingly low.
Call me cynical, but there you are.
Individual devices may support these types of files via disk or USB because each copy has to be generated for each individual use. Streaming may very well be supplying more than one viewer at a time (so they think).
Standalone software for DLNA serving can get around the DLNA restrictions by serving the 'rogue' formats by UPnP so that, if the receiving device supports them, they can be played.
The Oppo supports MPG (1 and 2) video (with any of MP2, AC3 and 16-bit PCM audio), MP3 and PCM (16-bit) audio and JPG and PNG images via DLNA and MKV via UPnP over its ethernet connection. Within the MKV wrapper, it additionally supports H264/AVC (Mpeg 4, Part 10) and XVID/MP4 (Mpeg 4, Part 2) with any of AAC, MP3 or 16-bit PCM audio. Anything else (currently) needs to be converted by the mediaserver software to one of those formats or wrappers or formats within wrapper.
Oppo is NOT really responsible for the deficiencies of DLNA and I'm quite pleased that they undertook to enable ANY functionality of DLNA/UPnP over the ethernet connection at all.