Leaning Tai Chi From DVD

I have been asked many times if there are DVD's people can use to learn taiji at their own pace because they don't always have time to go to class.

I have yet to meet a person who has obtained any internal benefit from doing this and most don't have a good grasp of postures or forms.

Having said that I am sure there are people in the word who can and have obtained this but they are like a grain of sand in dessert.

My answers have always been:

1. A DVD is good to reinforce a lesson between classes but not for learning true taiji
2. If you can't commit to a class it is doubtful you can commit to a set time to follow a DVD
3. The true essence of taiji (the transmission) is obtained by your teacher correcting you and sharing his insights and you feeling his internal development
4. Correcting bad habits in taiji can take an extremely long time once you have them.