part of the problem may be that a lot of people dont have their ports open. even though most of the seeders do, half of them arent uploading at any rate that really helps.
it may help if you open up your ports. the faq should have some info on that, or if you search the forums you can find info. I dont know how computer savvy you are, but basicaly you need to set your router to forward the bittorrent ports (usually 6881-6999) to your computer.
ideally if you could get everyone downloading to forward their ports it would help out alot more. but ive gotten full dvds in maybe half a day when they are seeded well.
hope this helps some
-Darth Simon