Mostly its the media you are trying to burn, but your burner is what, 4yrs old? It can’t recognize these newer disks.
You may not have noticed, but beef specifically recommended Verbatim 2.4x speed media. If you are going to use this burner for dual layer burns, that particular media plus ImgBurn is your best bet.
A new burner wouldn’t be as expensive as making many coasters with dual layer disks. You might want to look into a new Pioneer 116 or Optiarc 72xx series drive if you want to burn dual layer. And even with a new burner the only dual layer media we commonly recommend is Verbatim, though some have had success with Philips in the new burners.