Hello,
I know this is an old post but here is my 2 cents and a one up to bring this back to life.
I just bought the entire Stargate SG-1 series (at Value Village ! woohoo $6.00 CDN/season) and am putting them on my NAS so I can view them with XBMC.
I have found that the DVDs include episode "teasers" or "trailers" that are 45ish seconds long ... You know, one show ends, commercial, commercial, "Next on (series name) , this happens that happens" , commercial, commercial, TV Show starts.
As with some of the above posts it would be very cool to implement a system where XBMC doesn't have to scrape but can use them if they are there.
Many thanks to teamXBMC for all the time and love they have (and still do) put into this project.
Its better than sliced bread