<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif;" dir="ltr"> <div class="yui3-editable_text-text" id="yui_3_10_3_1_1489272972724_176"> <a rel="nofollow" href="http://www.makemkv.com/forum2/viewtopic.php?f=3&t=224">http://www.makemkv.com/forum2/viewtopic.php?f=3&t=224</a> checking whether LIBAVCODEC_VERSION_MAJOR is declared... yes checking LIBAVCODEC_VERSION_MAJOR... 57 checking for AVFrame.nb_samples... yes checking whether AV_SAMPLE_FMT_U8P is declared... yes checking for avcodec_encode_audio2... no configure: error: The libavcodec library is too old. Please get a recent one from <a rel="nofollow" href="http://www.ffmpeg.org">http://www.ffmpeg.org</a> </div> I also tried compiling ffmpeg from souce with the instructions and it didnt seem to change anything ??? Mint 18.1 that's based on ubuntu. </div> </body> </html>