It appears that the lastest version 1.04.31_V does not read the .IFO files to obtain screen resolution of the original recording.
Any programs I record on my DVD recorder that I wish to play on my other TV system, I burn to disc and rip to my PC to download to my network drive. The DVD recorder is a few years old and compresses the 16:9 resolution into a native 4:3 file, the player obtains the resolution from the .IFO file.
This is how it worked perfectly until I upgraded to version 1.04.31_V, since the upgrade all recordings are shown in the native 4:3 format so the picture is compressed.
I checked the .IFO settings using and editor and they were all correct so as a last resort I have downgraded the firmware to the previous version 1.04.22_V and now my recordings play correctly.