There is also <i>f3,</i> which stands for <i>fight flash fraud.</i> A longstanding program for checking out purchased media. It is multiplatform, however it is distributed only as source, however some distros do include it (Debian has it).<p><a href="https://fight-flash-fraud.readthedocs.io/en/latest/index.html" rel="nofollow">https://fight-flash-fraud.readthedocs.io/en/latest/index.htm...</a>