Shenmue, NFL2K1, and DiscJuggler

Alright, first off, I would like to apologize if these questions have already been answered, but I didn't see them.

First off this post is NOT asking for links, they are just questions about the releases themselves.

First question, does anyone know why games like NFL2K1 and NBA2K1 have not/cannot be released? Is it the shear size of the game or a copy protection scheme? Just curious...

Second, I have had a few DJ images, ie. 4x4 Evolution and Jet Coaster which gave me the error "Illegal field in command discriptor." This happened before and a CD-R BIOS upgrade solved that. But these games still didn't burn in either a sony 8x or a ricoh 4x. It did eventually burn in a Plextor 12x. Does anyone know why this occurs? Is this a hardware limitation in the burners or how/what drive these images are created on?

3rd, does anyone know if games with online playability have any type of "tracking" via the disc?

Lastly, simple question, have all 3 CD's for Shenmue been released?

Thanks for your patience and sorry for the list of questions. Any help/answers that you can provide will be greatly apreciated. Thanks again,
-Ed