Video not Playing

I have just installed Serviio on my Windows 7 PC. I have a Panasonic BDP210T Blu Ray player. I have converted a DVD to .avi and it would not play. I converted the same file to .mkv and still nothing.
Also have a problem with Droid Bionic, but I think that is more a problem with the DLNA client on the phone.
If anyone has any advice I'd really appreciate it!
Also have a problem with Droid Bionic, but I think that is more a problem with the DLNA client on the phone.
If anyone has any advice I'd really appreciate it!