Hi...I've justtried to burn a -R disc in toast authored with DVDSP and 2 types were not recognised and I had to use a proper Apple mac disc...these are less available...is there a way of finding out compatible manufacturers ?thanks for your time...Roger
Depending on the make and model of the burner it may not support DVD+R and DVD+RW media. (Note the "plus" instead of "dash".)
If you got an early "SuperDrive", based on a Pioneer A03 or A04, you have to install a firmware update to burn DVD-R media that are rated for a speed of 4x or faster. With this upgrade burning won't go faster, but without it burning will fail if you are lucky and if you are unlucky you may permanently damage your burner. Please check Pioneer | DVD-R/RW Computer Drives and DVD Recorders Download Page.