1\         PWAD files (zipped) starting with 0-9 and A-C.
2\         PWAD files (zipped) starting with D-E.
3\         PWAD files (zipped) starting with F-K.
4\         PWAD files (zipped) starting with J-O.
5\         PWAD files (zipped) starting with P-S.
6\         PWAD files (zipped) starting with T-Z.