"Is using Plextor's GigaRec any better than using 90/99-min blanks"
If you use top-notch media, probably. But personally I get paranoied with ANYTHING that tries to "make more with less" by bypassing standard technical specifications... overclocking, overburning, I leave this sort of adventures to... the adventurous.
If the idea is to save money, I'll choose the "cheaper-but-not-that-bad-discs" approach anytime over the "getting-more-MB-out-of-a-disc" one. :bigsmile:
Only MY opinion. Maybe users that have experience with Gigarec will have another opinion.