OK, Optodisc and Amethystum can be from the same factories, but LGE and prodisc-codes also?
I know several smaller CD/DVD-makers use codes of other manufacturers because they had no own MID or at last their MID were not supported.
In case of hq4u it looks like they buy the cheapest products they found and fill in in cakeboxes.
Anyone remember the lables Budget, Bulkpaq and Tuffdisc? They do the same, made an own Logo, use a thick surface coating. I had also 3-4 different codes in one cakebox, TTG01, CMC AF1, TTG02, MCC 02RG20. And: It were no fakes, according to very good burning-results.