When I started looking at blu-ray burners for my iMac, I read um-teen reviews of various drives. I narrowed it down to four brands. I went with the Pawtec first - reviews were decent, some people had no trouble with it. I, however, could not burn blu-ray discs on it. It played them fine, and burned regular DVD's fine, but not blu-ray. So I returned it (my first-ever return on Amazon, and while it cost me a few bucks, it was painless!) and went back and read more reviews on the remaining contenders.
It came down to LG, Pioneer (the picture-frame one) and Samsung. The Pioneer looked cool, and the picture frame gimmic was appealing, but in the end, cost won out. The LG was most expensive. The Samsung was least expensive. There appeared to be several models out there (an A, B, and C). I tried researching what the letters meant and it looks like it's basically the order of updated drives. So I took a chance on the latest one - the 506-CB - in white.
Took it out of the box and plugged it in. The white drive looks good with the iMac, but as noted on a different review, the Amazon photo looks almost silver-ish, and this is definitely white. Anyway, I inserted a blank disc, and Mac OS X 10.9.3 asked what I wanted to do with my blank BD disc, so that was cool (the Pawtec did not do that). I hit ignore and opened Adobe Premiere Elements 12. Burned a movie to blu-ray (HP brand BD-R discs) on the first try. Plopped it in and it played on my TV no problem. Took it out and compared it to the same movie burned onto DVD - video quality was definitely better. Go blu-ray! I put in a commercial BD movie and it played fine (using one of the free players found online). So it burns and plays blu-ray on my iMac as advertised.
I put another blank disc in. This time I told OS X to open Finder. Added a 24 GB 30-min movie file for archiving. Drag-and-drop, just like in Windows (7, no idea how Windows 8 works - I left that train a while ago lol). I clicked "burn" and a window popped up for a name. Named it and clicked "go" and it is 35% complete as I write this. Very easy to archive files onto BD.
I have not tried burning a quad-layer disc - they are cost prohibitive. But I wanted the feature for when the costs come down, and this drive is supposed to support that. I think another reviewer said his model AB burns quads, so I have no reason to believe this model CB won't.
For out of the box playing and burning a regular blu-ray disc on a Mac, I'm happy, and would recommend this drive. Especially at under $100 with Prime 2-day shipping.