AVI vs HD, difference between AVI and HD format

Comparsion between AVI and HD

File Extension	AVI	HD
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.
Developed by	Microsoft	N/A
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;

MOV VS AVI	AVI VS WMV	AVI VS MP4
MOV VS MP4	MOV VS MPG	MOV VS DV