"Putting together" several ISO files?

I'm downloading the new solaris and tried with the dvd version. For some reason though it downloads like 5 small isos called solaris_dvd_[NUMBER] 480 mb. So I need to like make one big dvd out of the five.. How do I do that?

/Richard

Depending on the OS the files are saved on do one of the following:

UNIX: cat file1 file2 file3 file4 file5 > file.iso
DOS: copy /b file1 + file2 + file3 + file4 + file5 file.iso