I have tried to embed a `.flv` video file into a PDF using either the package `flashmovie` or the package `media9` together with `beamer` and `pdfLaTeX`, as described, for instance, [here](http://abarry.org/the-complete-guide-to-embedded-videos-in-beamer-under-linux/).

The video is shown correctly in Acrobat Reader 9.4.1 on Ubuntu. However, the reader crashes when I move on to the next slide, irrespective of the contents of that slide. The reader issues the error message `(acroread:7653): Gdk-WARNING **: gdk_window_set_user_time called on non-toplevel`.

Has anyone come across this problem and knows the reason/a solution?

Is the procedure described above still the recommended way of including videos into PDFs? Given that Acrobat Reader does not support flash anymore, it seems like there should be better ways.

Here is a minimal non-working example with the `flashmovie` package:

```
\RequirePackage{flashmovie} 
\documentclass{beamer}
\usepackage{flashmovie}
\begin{document}
    \begin{frame}
        \flashmovie[engine=flv-player,loop=1,width=146px,height=108px,auto=1,controlbar=0]{movie.flv} 
    \end{frame}
    \begin{frame}
    \end{frame}
\end{document}

```

Here is a minimal non-working example with the `media9` package:

```
\documentclass{beamer}
\usepackage{media9}[2013/11/12]
\begin{document}
    \begin{frame}
        \includemedia[width=146px,height=108px,activate=pageopen,addresource=movie.flv,flashvars={source=movie.flv}]{alternative}{VPlayer9.swf}
    \end{frame}
    \begin{frame}
    \end{frame}
\end{document}

```