I had a look in /renderers/PS3.conf but this seems to state what a device can natively handle. So perhaps it's somewhere in the source that is not allowing WebM/VP8? I tried changing the extension to see if it was ignoring WebM simply based on my original extension (.webm) but it wasn't, so I have a feeling somewhere in the code it's not allowed.
I didn't want to checkout the SVN as I am no Java expert, so thought I would raise a feature request instead. I hope very soon Sony will release a firmware update with a full HTML 5 browser and native .webm support, until then if PMS can server my WebM I would be over the moon.
Thanks
