Re: DVD CD's
LightScribe discs are basically normal DVD's and CD's with the normal data side and text side. Usually companies put their logos and all that stuff, but with Lightscribe it's blank. If you have a LightScribe drive, when you're done burning the data, you can flip the disc over and if you've created a disc cover, it'll "burn" it to the disc. Basically it's custom covers for your discs.
LightScribe is pretty expensive in both disc and drive, so expect to shell out a bit of money. The cover burn time takes a little long too, approximately 20 min. give or take. Oh, and it burns in black and white. HP is trying to develop a Color LightScribe, but so far you'll have to deal with black and white.
If you just want normal CD's and DVD's, just get those instead. Unless you have a LightScribe drive and like burning covers, it's not worth it.