This has been discussed before, search the forum. Delkin is the same as Kodak is the same as MAM-A is the same as Mitsui (modern). It's pretty well inferior. It's not very good media at all.
One thread of many: http://club.cdfreaks.com/showthread.php?t=195330
If you want scratch-proof high-quality media, get some Verbatim VideoGard discs. There are some others too, from TDK and Maxell, but I'd suggest the Verbatims.
Words like "archival" and "gold" are sucker words, marketing ploys, nothing more.