Summary: I bought this media because the previous Verbatim DL disks always worked for me and after wasting 3 Memorex DL disks, I needed something that worked.

My first two disks didn't work after successful burns. After updating firmware and setting booktype to DVD-ROM, the remaining disks worked fine.

These disks will hold up well and if you use the right booktype are a 5-star product. I'll give them a four because most DVD-burning software does not default to this setting, nor to most drives' firmware.

As a bonus, Verbatim is sending me two free disks to replace the original two that didn't work. Great C/S!!!