Cons: It has problems reading certain movies. Don't know any specific cause or circumstances. Some movies it plays fine, others it chokes on. The discs in question play fine in other players, and are not scratched.
Summary: I bought this drive specifically to burn my home videos to MDisc BD-R discs because of their permanent storage nature. Out of the box, it was able to burn CDs, DVDs, and Normal BD-Rs, but when I tried to burn an MDisc, the burner would go through the burn process and at the very end, it would eject the disc and say that the burn process was not successfully completed. I tried placing the disc in the drive again, and it showed no files on it.
Summary: Windows recognized that the drive was there, but it wouldn't recognize any disks. I tried removing the driver to Add New Hardware, but the "new" hardware was never detected again, even after re-seating the power and known-good SATA cable. I dual-booted into Ubuntu 14.04 and it also did not recognize the drive. Beyond the $50-70 expense for a BD drive, I find that it also costs ~$30 for BD player software to process through the DRM...
Pros: It read BD's and DVD's for a year or so without problems.
Cons: It only worked for a year or so. I expect more for $68.99. I don't want to make any hasty condemnations, but I will certainly be reluctant to purchase another LG disc drive.