Pros: I've been through 35 of them, and 34 burned perfectly fine with IMGburn.

Cons: Had one dud in the bunch so far with 15 to go. Not terribly hard to swallow but even one dud knocks off a few dollars of value from the purchase. Very slight annoyance but difficult to write with a Sharpie on them.

Overall Review: This still seems to be the best option/value if ordering BD50's in bulk.

Pros: They do work...you don't get coasters (but...see my Cons). They're definitely cheap compared to other brands.

Cons: The con of these and some other media I've bought is that they seem to error and become bad disks if you burn higher than 19.9gb. They claim 23gb capacity on your computer but anything over 19.9 and they won't succeed. Keep it under that line and I haven't had a problem yet. I don't know if this is a media or burner with terrible firmware update support but either way if you know the system like I do, they're usable assuming you don't need more than that much space for storage.

Overall Review: Bit of an odd thing for these to work under 20gb when their capacity is 23.3gb but I just use up to 19.9gb of space and compared to the DVD-DL media I buy at relatively similar prices, they're worth the deal. So if you want something cheap to start with and want to see how it handles the method I've mentioned, it's worth a shot.