The device you bought (WD HD Media Player (Gen1) is running Custom Firmware with a Custom Theme/OSD.
http://wdtvforum.com/main/index.php?topic=2220.0
In order to get rid of it, you’ll need to update the firmware back to official
http://www.wd.com/en/products/wdtv/
You will most probably have to edit the *.ver file as well
eg. Go to Settings > About find the firmware version number … if it is lower than this (that will be fine)
VERSION=‘1.03.01’
LOCATION=‘wdtv.bin’
if it’s “higher” then edit the ver to a higher number than what your WDTV is running eg.
VERSION=‘3.03.01’
LOCATION=‘wdtv.bin’
Just a Side Note: I also own this player … be aware though, it does not support DTS 2.0 Downmixing … it only supports DTS Passthrough.
ie. If you try to watch a Movie with DTS audio with the device connected directly to a TV you won’t get any sound.
If your Father has a AV Reciever or 5.1 Amplifier with either HDMI or OPTICAL inputs (and it supports DTS) then you will get sound.
Also, for MKV’s… max 4 reference frames in 1080p (higher than that and playback will stutter)