i've just got some DVD-R's that i've been trying to burn in Toast... the first two disks i tried both failed on verification - and on the exact same sector it seems... then i got some different brand DVD's and now it gets to burning on what seems like the same spot the others failed and says "incompatible media". my bro seems to think that these are 'blue azo' disks and that i need a firmware update to burn them properly or something. i've checked Apple Support site but couldn't find anything about PowerBook updates. anyone know what the trouble is? how can i get around this?