[How] Play MKV Files on Mac
Me and Lauren wanted to watch the Legend of Korra on her MacBook that was linked to our tv, but we couldn't play it because the file was in MKV format. QuickTime doesn't natively support MKV files and installing a DivX player didn't help either. DivX player did playback the video, but there was no audio and it kept showing a message about an AC83 decoder being missing. Perian, on the other hand, is a powerful QuickTime extension, which allows playback of video AND audio without any problems. So download Perian for all your video playback needs on your OSX!
[How] Premiere: Avi File; No Video, Only Audio
Herpderp! I had some trouble importing AVI files to Adobe Premiere. It would only import the audio file and not the video. Same thing in Windows Media Player; no video, only audio, but it worked fine when I opened the file in VLC. Frustrated, tried to convert it to other formats, changing file extensions, installed additional codecs... nothing worked!! After 30 minutes of screwing around I figured it out.
The video was recorded using Fraps at my school, but I was editing the video at home and I didn't have Fraps installed. Apparently, videos recorded by Fraps sometimes require the FPS1 codec from Fraps. So Installing Fraps would also install the FPS1 codec. After that the video worked in Windows Media Player and worked in Premiere!! Yaaaaay!!