Since I purchased my Blu-ray burner last December (2016), I have exclusively used Verbatim BD-Rs. According to Verbatim's website, their LTH discs are marked accordingly, so it is safe to assume that unless the label states "LTH" the discs are HTL. Their label states they are MABL, which is metallic. Of the over 100 backups I have made, I have not had even 1 failure. They burn ok and play ok in my standalone BD player (Sony BDP-S6500). I always use Imgburn to burn. In my research of LTH (organic dye) I have come to the conclusion that these are not for long term use. The technology is not new ... some early CD and DVD discs used organic dye, and most of these can't be read after several years ( I actually had a few of these I had inadvertently purchased back in the day, which went bad), so I stay away from organic discs. My only problem with my setup is that I have burned a few Verbatim BD-R DL's which tend to stutter or freeze on layer 2 when played in my player. Rather than burning at the supported 8x in my burner (LG WS14NS50, Svc code 50), I burn at 2x, which seems to alleviate the problem most of the time ... but not always (though they play ok when played on my PC using Power DVD 12). Have yet to test these on another player to determine if it is the player or the disc., So not sure if it is the disc, the burner, or the player. But like I stated, the SL Verbatim BD-Rs have all burned and played without a hitch 100% of the time. (Btw, I burn these at 12x without a problem). My BD-R collection is too new to determine what the long term retention will be with these discs, but have not found anything in my research to indicate they will give me problems in the future. They are relatively inexpensive on Amazon ($20 for a 25 pack spindle), making them actually cheaper than Verbatim DVD DLs, so I would highly recommend Verbatim BD-Rs.
