HD quality mobile movies in 3gp (mpeg4 codec) and Mp4 (h264 codec). Recommended 3gp and Mp4 format for basic and medium end phones and High Mp4 format (equivalent to MKV) for high end phones, tablets, ipads. h264 codec is one of the best video compressors providing best quality under the equal sized mpeg4 (3gp) and xvid format (avi). Audio is converted in AAC format using the best audio convertor tools and latest movies are in stereo (whenever possible).