OBJECTIVES: I. Determine the complete response rate (chemotherapy complete response, pathological complete response, or surgical complete response) to intensive chemotherapy with autologous peripheral blood stem cell support in patients with cisplatin resistant germ cell tumors. II. Determine duration of complete response and survival of these patients after this therapy. III. Determine the toxic effects of this regimen in these patients. IV. Determine the pharmacokinetics of this regimen and the relationship between these pharmacokinetics, nature and duration of response to treatment, and the toxic effects in these patients.