You might want to convert your MOV video to AVI format either for sharing with your friends who have PCs or for uploading to video editing tools like iMovie or Final Cut Pro. Yes, some people might argue that MOV is supported by iMovie and Final Cut Pro! However, it happens to some people that their MOV videos just grey out when they try to import them to iMovie or FCP. That's because the file’s codec isn't recognized by iMovie or Final Cut Pro.