PROJECTED ACCRUAL: A total of 41-85 patients (21-45 with anaplastic astrocytoma, anaplastic oligodendroglioma, and mixed malignant glioma and 20-40 with glioblastoma multiforme (closed to accrual as of 05/31/2001) and gliosarcoma (closed to accrual as of 05/31/2001)) will be accrued for this study.