I still watch my SA training videos fairly regularly. So not sure if there are newer training videos out there or ones from another company.
More suitable to your needs, I think SA has everything you will need to accomplish your goals. I thought they had 4 video disc lessons on just jibbing and freestyle.
Burton Snowboard Acacdemy did have some videos out but they were almost a copy of SA's videos
Yea. SA is a great system. As donutz said having them on your phone is great, you can watch something on the chairlift before your next run, or on the drive there, etc. The actual videos are really well done and provide loads of info. Just buy SA