I occasionally found that comma cannot be used in names of
.swf files imported by
\includemedia macro defined in
media9 package although comma is allowed in names of a graphics file imported with
\includegraphics. Can someone provide a complete list of symbols allowed in names of various types of files? This can be system-dependent list as seen from this post: What are the allowed characters in filenames? My favorite OS is Windows 10.
Update: Recall that most books on LaTeX provide list of symbols allowed in a source text. It would be useful to have a similar list of symbols which can be safely used in filenames on various OS.