Hi,
That would most likely be a codec issue, since we can’t guarantee codecs for streaming media is available for many formats only the ones we can guarantee will be playable are included, this is why you’ll see a “Download” option on the ones that can’t be played out of the box.
There are various plugins which try to add extra codecs, with varying success, you can have a look in the plugin repository for a flood of them 🙂
Hi Marius, thank you for the reply.
I understand that the player allows for un-playable file types to be downloaded, but where does the issue of codecs come into play? Both file types play in all players on pc and will play on various Android Apps on mobile devices. Is it more like something to do with Flash I think?
If it is not possible to play .mkv on the wordpress native player, is it possible to add some code that will show previous next or loop buttons on the player?
It has to do with what the browser can support out of the box, WordPress doesn’t add anything special to the mix to keep it self simple and easy to use, and extending the video functionality is a plugin task 🙂
There are a few plugins that add support for more video formats and other such nifty video features over at https://wordpress.org/plugins/search.php?q=video+player
