Thanks for asking and giving me a chance to remind about the realities in the Blu-ray market :). I swear, I am tempted to put together a rescue team to monitor online forums and help save people from the non-stop bait and switch tactics of the brands that are selling BD-R.
First, Philips stopped making BD-R some time ago. That name on a spindle of discs now is simply a selling tool for whoever happens to be paying Philips to use the name. In the Americas, CMC magnetics Taiwan currently owns the right to sell "Philips" media in the US. You will get CMCMAGBA5 BD-Rs in that spindle you linked to. You would get CMCMAGBA3 in a 25GB 4x "Philips" spindle in the US. On the other continents, a "Philips" spindle will contain whatever discs are chosen by the company currently licensing the name.
The same game is going on with big brands like TDK, Sony, and Verbatim around the world.
Optical Quantum is a brand name invented by Vinpower. Vinpower has been in the business of making and selling duplication towers and accessories for years, now. They don't make any optical media. They buy discs from whoever they choose and sell them in their labeled spindles. In my experience, they choose to make a profit from selling cheap, variable quality media a little too much.
Falcon sells Falcon BD-Rs. Period. Made at the same location, same materials, same production lines. On rare occasions, you can find private labeled Falcons, like SmartBlu.
Falcon licensed TDK's excellent BD-R designs(which TDK claimed 100 year longevity for), and continue to make those now that TDK(Imation) has abandoned them in pursuit of higher profits selling lower quality discs.
Panasonic sells Panasonics, and the evidence continues to show that they can be trusted for high quality and longevity.
Infomedia is a relative newcomer to the world of BD-R. But so far, the rather extensive testing that has been done around here on them(thanks Jadburner and all :flower:) makes it appear that they might also be one of the best choices in the US among lower cost BD-R. Infomedias came around in 2010, and burners with older firmwares may not be ready for them.
Sorry for the wordy post :o, but its a dangerous jungle out there in the world of BD-Rs right now