I've just bought a maxell 50disc cakebox from fry electonic, my nero info tool says "manufacture id = RITEKG05". I thought it should be MXL Gxx or something like this.. so..
If you look at www.dvdrhelp.com, under the media section, you will see that maxell can be at least 3 different media codes. You should be able to search the forum and find how to determine the media code by serial number and where it is made.
Made in Japan = MXL code and real good maxell media
Made in Taiwan = just generic ritek G05 media, much worse than the maxell japan media.
And on this very forum:
A little search goes a long way.