.MOB File Extension
What is a MOB file?
Video file downloaded from MOBTV (MediaCorp Online Broadband Television), a subscription-based video service available in Singapore; can be opened by Microsoft Windows Media Player, but may include DRM protection, which requires an active MOBTV account in order to play the video.
NOTE: MOBTV became part of xinmsn, a collaboration between MediaCorp and Microsoft, in 2010. The xinmsn service uses a standard Silverlight format and the MOB format is no longer supported.