LD Products 4inkjets HP Replacement Ink Jet cartridges 78 are defective Long Beach, California

I purchased 3 HP 78 compatible color inkjet cartridges from LD Products(4inkjets.com).  Do not waste your money!!  These cartridges leaked, gave constant error messages on the printer and never printed colors other than red and yellow.  When I called and reported the problems, they simply said "unfortunately we cannot correct a problem on the chip in the cartridge".  Also, "these cartridges have a limited shelf life".  We only warrant your purchase for 1 year, so even if you never open the sealed plastic bag, when you do, the cartridge is still useless.  I have seen other reports of printer damage from these cartridges.  Now I am going to purchase a real HP 78 and if there is a problem, I will update this post as to any damage these faulty cartridges may have caused to a very expensive HP Office jet printer.