Editing Device Profile for DirecTV HR20-21

I have a general question about editing the device profiles. It seems all videos are transcoded down pixel size wise as I have to zoom, etc to fill the screen on my tv where as Nero MediaHome streams full screen. Where in the device file can I force transcode size, and or transcode at original size? This is the device profile....

Also has everyone had good success with DirecTV boxes? Nero MediaHom works sporadic. Sometimes videos play all the way through, some freeze with errors stating stream size exceeded, and others have audio glitching sporadic throughout.

<bestfit>auto</bestfit>
<preferredtranscoded>auto</preferredtranscoded>
<transcodedlist>auto</transcodedlist>
<baseline>auto</baseline>
<nonsupported>auto</nonsupported>
</descriptiondeliveryrules>
<avcontainer id="mpeg" name="mpeg_ntsc" encode="1" mimetype="video/mpeg" format="dvd" dlnaprofile="MPEG_PS_NTSC" supportschunked="1" preferredtranscoded="1">
<video>
<format id="mpeg2video" encode="1" codec="mpeg2video" preferredtranscoded="1">
<dimensions width="352" height="480" />
<dimensions width="480" height="480" />
<dimensions width="544" height="480" />
<dimensions width="640" height="480" />
<dimensions width="704" height="480" />
<dimensions width="720" height="480" />
<dimensions width="1024" height="576" />
<dimensions width="1280" height="720" />
<dimensions width="1366" height="768" />
<dimensions width="1440" height="810" />
<dimensions width="1600" height="900" />
<dimensions width="1920" height="1080" />
<maxbitrate>9000000</maxbitrate>
<minbitrate>0</minbitrate>
<copyts>0</copyts>
<samequality>0</samequality>
<framerate>29.97</framerate>
<gop>18</gop>
<bitrate>8600000</bitrate>
<bufsize>1835008</bufsize>
</format>
</video>
<audio>
<format id="mp2" encode="1" codec="mp2" preferredtranscoded="1">
<channels>2</channels>
<bitrate>320000</bitrate>
<maxbitrate>320000</maxbitrate>
<minbitrate>64000</minbitrate>
<samplingrate>48000</samplingrate>
<maxsamplingrate>48000</maxsamplingrate>
<minsamplingrate>11025</minsamplingrate>
</format>

To keep the videos at original size, you can remove all the <dimensions> attributes from the device profile, and then the device profile will not impose any dimension restrictions to the streamed videos.

Make a backup of your device profile (remember to give it a different file extension of ".prf" otherwise it will also be loaded into Mezzmo).

I suggest after you make these changes, stop your Mezzmo media server and delete your devices from the Media Devices dialog in Mezzmo so your new device profile is loaded correctly. Then you can start your Mezzmo server which should auto-detect your DLNA devices again. Check in the Media Devices dialog that your DirecTV device is using your amended device profile.