Ok guys, i've browsed through the codec packages, but i'm still having a hard time deciding which to download and install. the one i have in mind is the: K-Lite Mega Codec Pack v1.67 i just want to know if this pack is easy to uninstall (i.e. it does a full uninstallation, leaving nothing behind) and plays .ogm and .mkv files. also, i want to know what's the best video conversion program there is. i used to have River Past Video Converter, but it seems to produce not so great results. i mainly want to convert any video file type to .3GP files. Cheers!!!