I bought a spindle of 100 TDK DVD-R's at Costco. My question is when I have Nero check the media ID it says manufacturer unknown, but it has one of the better ID's(TTH02). On the disk it says nothing also, just all white printable face. They test better then my Verbatims on Nero also, but I want good archival media. Do I trust these disks or could they be fake since nothing is written on the disk and the manufacturer is unknown? Thanks for any help, I am new here and have learned alot about archiving so far.