Embedding Youtube Videos with a Specific Time Stamp

I use something like this to embed youtube videos:

\documentclass{article} \usepackage{media9} %pdflatex, latex+dvips+ps2pdf, xelatex %\usepackage[dvipdfmx]{media9} %latex+dvipdfmx

\begin{document}
\includemedia[
  width=0.6\linewidth,height=0.45\linewidth,
  activate=pageopen,
  flashvars={
    modestbranding=1 % no YT logo in control bar
   &autohide=1       % controlbar autohide
   &showinfo=0       % no title and other info before start
  }
]{}{http://ift.tt/1vSFoKM id>?rel=0}   % Flash file
\end{document}

I would like to link to a video at a specific time. Usually the time is appended to the url as something link #t=144 for example. This of course leads to the following error at compile time:

! You can't use `macro parameter character #' in horizontal mode.

I tried to escape the # with \# but no luck.

Any advice?