I make it a point to only buy authentic Brother brand cartridges for my Brother printer, not the cheaper "generic compatible" ones. When I first saw the generic ones, I thought wow, that price is terrific for these pricey cartridges, but after reading a lot of the reviews, learned that they're just no-name cartridges that will fit a Brother printer, but the quality of the ink isn't as good and they can seriously damage your printer. Consequently, I avoid being "penny wise and pound foolish" by sticking with the Brother brand and always find that Amazon has the best price for the value packs. I'm also careful to read the description as one Brother cartridge may be less expensive than another seemingly identical Brother cartridge, but the reason is that the page yield is different so it's necessary to order based on how high your printing usage will be. I also only rated the cartridges 4 stars rather than 5 not due to quality which is excellent, but because they still seem too expensive for what you get.