ted talk copyright

I thought the ted talk on the current copyright laws with multimedia was very interesting. i had seen a video with a similar argument called Rip Remix, i don't think it right that people shouldn't be able to use others artwork to create their own. all ideas come from previous ideas and as long as people are altering the original piece in some way than it should be legal. i didn't think the slideshow he used with his presentation was very exciting and i thought he could've used more examples like with music copyright laws and medicine copyright laws but i thought he got the point across well.