Try removing the .wtv wrapper for W7 Recorded TV by right clicking on a .wtv file in Explorer and selecting 'convert to .dvr-ms format' first. Then continue as you used to.
Let us know if you are successful.
Make sure you are not violating any laws or terms of use in doing so.
i know how convert .wtv files but no luck .wtv mpeg4 files
all us dvb-t FTA channels using mpeg4 coding and no way to convert or use MC internal dvd burner
i can watch recorded mpeg4 .wtv files via MC
I ask as I wonder if a localized version of Windows 7 would install or not install certain files that would affect the recording of such signals for your location.
Just out of curiousity, why do you need to convert them and what are you trying to convert them to?
To find out if a file is protected and therefore not eligible (legally) for reproduction, right click on the file, select 'properties' and review the details tab, specifically the content section field 'protected'.
Are you working with a protected or non-protected file(s)?
There are several 'apps' available that can further read the metadata associated with a file that will provide information about encryption and codecs, etc.