Thanks for the reply. I've attached the the log entry from the point where I selected an HD program to play on the TV ("E:\Public Videos\Test\Food Unwrapped_Channel 4 HD_2012_10_22_20_28_00.wtv"). This program errors and it skips to the next program which is SD and that plays OK ("Heston's Christmas Feast_More 4_2012_12_23_21_58_00.wtv").
I've not included the whole log, do you need it all? Header info in the log is:
2013-01-26 08:09:08,814 DEBUG [ApplicationInstanceManager] Listening for application instances on socket 44331
2013-01-26 08:09:08,814 INFO [MediaServer] ------------------------------------------------------------------------
2013-01-26 08:09:08,814 INFO [MediaServer] Serviio DLNA media streaming server v 1.1 (rev. 6ba0dd933a8e+)
2013-01-26 08:09:08,814 INFO [MediaServer] Petr Nejedly 2009-2012
2013-01-26 08:09:08,814 INFO [MediaServer]
http://www.serviio.org2013-01-26 08:09:08,814 INFO [MediaServer]
2013-01-26 08:09:08,830 INFO [MediaServer] Java 1.7.0_05-Oracle Corporation
2013-01-26 08:09:08,830 INFO [MediaServer] OS Windows 7 amd64 6.1
2013-01-26 08:09:08,830 INFO [MediaServer] File encoding: windows-1252
2013-01-26 08:09:08,830 INFO [MediaServer] Headless mode enabled: true