Gom Player is a multimedia player which can play most of the differently encoded video formats that include AVI, DAT, MPEG, DivX, XviD, and plus more) with its own built-in codec system.
VLC Media Player
VLC (initially VideoLAN Client) is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg.
Quick Time Apple QuickTime multimedia authoring/playback software features built-in support for digital video, including the DV camcorder.
KMPlayer is an excellent video and audio player which can play a large amount of formats such as VCD, DVD, AVI, MPEG-1/2/4, WMV, RealMedia, and QuickTime among others.
ProgDVB - the universal and very power software for watching digital TV and listening to radio channels. Support for various types of data sources: Internet TV and Radio.
LastPass - service for secure and convenient stores passwords to websites and works across systems and browsers. LastPass automatically fills in saved log-ins and forms with the click of a button.
Google Chrome: A browser that combines a minimal design with sophisticated technology to make the web faster, safer, and easier.
K-Lite Codec Pack
K-Lite Codec Pack - is a collection of codecs and related tools. Codecs are required to encode and/or decode (play) audio and video.
VirtualBox is a cross-platform virtualization application. So, for example, you can run Windows and Linux on your Mac, run Windows Server 2008 on your Linux server, run Linux on your Windows PC, and so on, all alongside your existing applications.
GPU-Z is a lightweight utility designed to give you all information about your video card and GPU.