The ROMs for the A500/600/2000 are equal (one chip). The ROMs for the other machines (two chips) are different. There is a special Workbench floppy disk for the A4000T which contains the workbench.library that is not in the ROM for the A4000T only. The OS3.5/3.9 CDs are all the same for all Amiga models. Except that there are two revisions of the 3.9 CDs: the second revision contains the Boingbag 1 (it is labeled pink, the first revision has a red label).
Bye,
Thomas
