Ideally, you want a 720p or 1080p Blu-ray rip. Avoid "CAM" or "TS" versions. A good Taken 2008 Dual Audio 720p file usually weighs between 800MB to 1.2GB.
Interestingly, Taken has become a benchmark file for dual audio enthusiasts on torrent sites and Plex servers. Partly due to the (where the frantic editing became legendary), the franchise is one of the most re-downloaded action trilogies.
"Taken Dual Audio" usually refers to versions of the action thriller film