> i am actually not using FAT, and i could have >2GB files,
> but growisofs still complains about it (you have to force
> it to burn >2GB files) and i know for compatibility it's
> not a very good idea. For a last resource it wouldn't be
> a problem at all since i don't have old machines, but i'm
> pretty sure it's not too hard to avoid it all together
> (for now my worst case scenario is split'ing the file). 
> Now you say in bacula files ARE volumes, then how come
> for my straight-to-dvd backup i have 1 volume but 3
> different files in the actual dvd? if i do bscan it
> recognizes 1 volume only and when it was created it
> created a single volume in the catalog. I thought that
> was the whole point of Maximum Part Size (emphasis on
> PART) which is different to maximum volume size. But the
> whole dvd thing might be due to a different reason, i
> just thought that's what it was       

The concept of PART is bound to DVD media type only, DVD has it's own, separate code base in Bacula.