Windows does not support directories with spaces at start or at the end.
TVServer should trim that spaces for recordings.

Thread with bug report:
http://forum.team-mediaportal.com/mediaportal-1-1-0-rc-3-4-519/record-every-time-every-channel-doesnt-work-82972/

h4. Steps to Reproduce
Create recording path pattern like this:
%channel%\%channel%\%date%
If channel name contains spaces like "ProSieben "
then error occured "Cant create file" in tswriter.log and you miss a recording