Video in PDFs
Link to the video files or hosted versions instead.
A Problematic Workaround
If you must embed a video into a PDF document, do not attempt to implement it in the original LaTeX.
Instead, create placeholder slides within the LaTeX, then use Adobe Acrobat to insert the video media.
Do not expect the PDF to render properly, if at all, on untested devices that lack a current version of Acrobat. Tested devices may have less-than-perfect rendering as well.
Example Embedded Video Placeholder Slide
\documentclass{beamer}
\usetheme{default}
\begin{document}
\begin{frame}[plain]
\vfill
\begin{center}
\fbox{%
\begin{minipage}[c][0.6\textheight][c]{0.8\textwidth}
\centering
\Large Insert Video with Acrobat Here
\end{minipage}%
}
\end{center}
\vfill
\end{frame}
\end{document}