You can use Media Player Classic or Videolan (AKA VLC) to directly play the files, though you may need DVD software installed to provide the codecs. Videolan can also be used to perform transcoding and other conversions and for LAN streaming. MPC may have problems with seeking in raw 9200 files but I prefer MPC overall.
Alternately you can remultiplex the Humax files into MPEG2 PS format. Easiest tool is HDTV2MPEG, I prefer ProjectX with command line mplex (included with DVDAuthor). Both tools will let you edit out adverts. Much more information available if you search for threads about burning DVB to DVD, including how to get the right audio into your file!
Someone else can tell you how to get Media Player to mangle the files, I prefer not to let it (and its security holes) run on my machines
MPC is included in the K-Lite codec pack
http://www.codecguide.com/ or available on its own (you'll have to search)
VLC at
http://www.videolan.org/
ProjectX at
http://www.videohelp.com/tools?tool=ProjectX
HDTV2Mpeg at
http://www.videohelp.com/tools?tool=HDTVtoMPEG2