I took this pack in doubt, but try telling me that it would probably go back or be lost. 20 20 cartridges (or 4 complete games) is simply ibattables. At the bistros I have any suites insert in my PIXMA MP540 printers one and everything is done alone, fully recognized, no worries, no leaks or other problems that could damage my printers. In short, a net saving of 25 on a set of sub brand cartridges (Pelikan or other) and 55 of a set of full cartridges of Canon. Suffice to say that we can not fight.