The disk directives has the following format:
.disk OPT_WRITERNAME [...DISK PARAMETERS..] {
[..FILE1 PARAMETERS..],
[..FILE2 PARAMETERS..],
[..FILE3 PARAMETERS..],
....
}
The writer name is optional, if left empty the default disk writer is called. Otherwise the writer name is used to look up a 3rd party disk writer imported from a plug in. In the following sections described how the default writer works.





