it's typical booklet of CD size, more or less the same as the old version (compared to discogs, I don't have it) + some story in japanese, looks like some notes to each song, but no english translation.
Mastering ... hmm, at first I never heard old version to compare with, and second, honestly, I don't care about such a things, I like it or not ... and I like this comp. a lot!! Those live sessions are crazy as fuck!
btw it's already on discogs, so you can find some info there as well
http://www.discogs.com/Hijokaidan-%E9%9B%91%E9%9F%B3%E4%BC%9D%E8%AA%AC-4-Noise-Remaster-Edition-The-Neverending-Story-Of-The-King-Of-Noise/release/5999219