I have a question related to codecs.I recently had my OS re-installed.I immediately payed a video file. However, I have the following question - Why am I able to play AVI and MP4 video extensions, without having installed any codec packs? (only the videocard drivers installed). And can you tell me if I can do that the same to every other PC or laptop? (I mean to play AVI or MP4 files without installing drivers or codec packs).Thanks in advance.