A couple of weeks ago I purchased 1 spindle of Mediarange MR508 BD-R Dual layer 50 GB 6x, these discs are HTL, and Mediacode is VERBAT-IMf-000, so I supposed it should be a quality media, but after first burn I think I was wrong.   Today I had enough spare time at last to check it, and first burn is a coaster   I disabled antivirus and closed browser session despite I have a powerful system with plenty of RAM.   Burnt it apparently with no problems, but when verification was around 85% su