I just bought a used movie from blockbuster, and i'm having trouble ripping it using handbrake (says it can't find a title or something like that). I tried ripping it via mactheripper then to handbrake, but got the same error...anyone help?
No you're not. IIt is illegal to rip a DVD for any reason under the Digital Millennium Copyright Act. Bypassing a DVD's copyright protection/encoding it to another format is totally illegal. Ripping a CD for backup/personal use is legal in the US (although not here) but doing so to a DVD is absolutely illegal.
However, I've found that sometimes there are just some DVD's that won't work with Handbrake. I had trouble with one such DVD so I just left it for a while, then a new version of Handbrake came out and it worked. Yup, scratching my head still over that one. My advice is to just let it go and try when a new Handbrake comes out.