The ever increasing clamour for CHEAP media, drove some of the good media (like Kodak Gold) out of the market - I don't know Hi-Space.
Thy most highly respected media seems to "Taiyo Yuden" not sure if I spelt it right, but it's usually abbreviated to TY.
Fujifilm - MADE IN JAPAN only, is normally TY - in fact, most media that's made in Japan will be TY.
Many of the other name brands, like 3M, TDK and a few others either use CMC (real junk media) or can be one of several, good or bad - Sony tends to be "Lead Data". another very poor choice.
A friend swears by Infiniti
http://www.medeainternational.com/infiniti/ - seems to be ok (a lot more relaible than previous unbranded silver, which frequently de-laminated if labelled), and found at my local computer fair for under £20 a 100 tub