|File Type||Audio Video Interleave File||High Definition Video|
|Description||Audio Video Interleaved, known by its initials AVI, is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows technology.||HD video refers to any video system of higher resolution than standard-definition video, and most commonly involves display resolutions of 720p or 1080i/1080p.|
|Summary||1) AVI is a file format, while HD refers to the resolution of videos;
2) AVI can be compressed with HD resolution (HD AVI) as well as SD resolution;
3) HD videos can be in different formats like AVI, MP4, MKV, MOV, etc.
|Help You Choose||1) If you'd like to keep videos in high definition, you can compress the videos to HD AVI;
2) If you want to make the HD video smaller in file size, you can convert it to SD AVI file;