A quality app like this should make you guys millionaire.
MALWARE WARNING - I downloaded this but my antivirus program gave this warning. The file 'smplayer-14.3.0-win32.exe' contained a virus or unwanted program 'ADWARE/InstallCore.Gen' [adware] Apparently there is unwanted adware bundled with the product. You may be able to decline this during the installation. I hate this sort of sneakiness and I didn't trust it at all. I've now deleted the file completely.
Check this new player: sourceforge.net/projects/qallinone It can play music, video and images! And it is cross-platform!