how to extend QuickTime to import or play other popular and specialized media formats using codec components

plamenok1 wrote:

how to extend QuickTime to import or play other popular and specialized media formats using codec components for my MacBook Air?

You can install Perian,

http://www.perian.org/

although this will be the last version, and Flip4Mac.

http://download.cnet.com/Flip4Mac-WMV-Player/3000-13632_4-87679.html

Otherwise you may have to look at a different and more extensive player such as VLC

http://www.videolan.org/vlc/index.html

or MPEGStremclip

http://www.squared5.com/svideo/mpeg-streamclip-mac.html

Good Luck

Pete