Consider auto-translating path separators for the runtime OS when playing media

[caprica]

Or perhaps throw an exception e.g. if trying to play paths with "/" on Windows when it should be "\".

[caprica]

The difficulty is dealing with any Windows extended path syntax, like network paths.

[caprica]

If we knew for certain the MRL was a File, we could use new FIle(mrl).getAbsolutePath().

[caprica]

Maybe compromise solution to add overloads to play/prepare etc to pass a File or Path argument.