 - Stratum II secreting tumors and embryonal carcinoma: Patients receive etoposide phosphate IV over 1 hour on days 1-3, cisplatin IV over 1 hour on days 1-5, and ifosfamide IV over 22 hours on days 1-5. Treatment repeats every 3 weeks for up to 4 courses. Patients whose tumor markers do not return to normal after completion of chemotherapy are off protocol. Patients may undergo surgery after chemotherapy course 2 or 4 if required. After completion of chemotherapy and recovery from surgery, patients with nonmetastatic disease undergo radiotherapy to the tumor bed 5 day a week for 6 weeks, and patients with metastatic disease undergo radiotherapy to the cerebrum, spinal axis, and tumor bed for 7 weeks. 