Is a media container format designed for streaming over the Internet. Used on popular video hosting sites. Video is usually stored in h.263 and h.264 formats, audio is a in MP3 or other less popular codecs. FLV-file format is a bit stream, which provides high-quality image even at low bit rates.
Is a media format designed for creating good quality video with resolution of 352x240 on 1.5 Mb/s flow. Now the standard MPEG-1, which belongs to the format supports a resolution of 4K. Resolution mpg is different from the rest of the MPG format family due to its maximum compatibility: files can be run on any PC or DVD-player.