Or more specifically, fan-subs. Personally, I find such fan-subs to be of no threat to the anime DVD industry. Why? Because those who do not plan on buying anything in the 1st place, won’t care. If you cut off the unlicensed distribution they just find other channels to entertain/get their shows.
DVD purchases are rarely on impulse, unlike say, manga. Due to the price difference, people can buy manga because the cover looks good. Therefore, they need to see the product. Here, I would like to applaud Odex’s move to broadcast the latest(or as up-to-date as they can be) titles on free-to-air TV.