AVI MPEG MOV Formats
Quicktime (MOV) format
The QuickTime (.mov) file format functions as a multimedia container file that contains one or more tracks, each of which stores a particular type of data: audio, video, effects, or text (for subtitles, for example). Each track either contains a digitally-encoded media stream (using a specific codec) or a data reference to the media stream located in another file. Tracks are maintained in a hierarchal data structure consisting of objects called atoms. An atom can be a parent to other atoms or it can contain media or edit data, but it cannot do both.
MPEG-1 format
MPEG-1 video was originally designed with a goal of achieving acceptable video quality at 1.5 tMbit/s data rates and 352x240 (29.97 frame per second) / 352x288 (25 frame per second) resolution. While MPEG-1 applications are often low resolution and low bitrate, the standard allows any resolution less than 4095x4095. Nevertheless, most implementations were designed with the Constrained Parameter Bitstream specification in mind.
MPEG-2 format
MPEG-2 includes a Systems part (part 1) that defines two distinct (but related) container formats. One is Transport Stream, which is designed to carry digital video and audio over somewhat-unreliable media. MPEG-2 Transport Stream is commonly used in broadcast applications, such as ATSC and DVB. MPEG-2 Systems also defines Program Stream, a container format that is designed for reasonably reliable media such as disks. MPEG-2 Program Stream is used in the DVD and SVCD standards. MPEG-2/System is formally known as ISO/IEC 13818-1 and as ITU-T Rec. H.222.0
The Video part (part 2) of MPEG-2 is similar to MPEG-1, but also provides support for interlaced video (the format used by analog broadcast TV systems). MPEG-2 video is not optimized for low bit-rates (less than 1 Mbit/s), but outperforms MPEG-1 at 3 Mbit/s and above. All standards-conforming MPEG-2 Video decoders are fully capable of playing back MPEG-1 Video streams. MPEG-2/Video is formally known as ISO/IEC 13818-2 and as ITU-T Rec. H.262
Windows Media Video format
WMV (*.wmv) files use Microsoft's ASF container format. These files can be played by Windows Media Player and other players such as MPlayer, VLC media player or Media Player Classic. Many third-party players exist for various platforms such as Linux that use the FFmpeg implementation of the WMV codecs.
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