What is the firmware that you are running on your WDTV Live SMP?
Do a Factory reset or downgrade the firmware to see if that helps, I am running 1.03.10 FW and I do not have playback issue like yours (Agree sproadically it still displays “Unable to play this type of media, Please refer to user manual for supported file formats”) But most of the time it is due to the fact that Media Library has not yet finished the content aggreation.
My suggestion would be.
- Reset to factory defaults, if that fails,
Try to downgrade the firmware from this link below:
Just Edit the file wdtvlivegen3.ver found in this package file to look like this
and save the file along with the rest of the FW package in the USB stick and Plug the USB stick into the media player, it will notify a new firmware is available and “Downgrade” thinking that it is upgrading.
Do a Factory reset if you still have problems again with 1.03.10 FW and see if that helps.
Oops! I read that WD have taken out the option to rollback to previous firmware
If you are doing this steps anyway, Do it at your own risk.