CD-R/CD-RW - 758 (32.8%) DVD-R/DVD+/-RW - 603 (26.1%) Secure Digital cards - 32 (1.4%) MMC cards - 10 (0.4%) Compact Flash cards - 61 (2.6%) USB Flash memory - 374 (16.2%) Memory Stick cards - 37 (1.6%) Removable HDD - 161 (7%) Zip drives - 22 (1%) MO drives - 23 (1%) 3.5 - 43 (1.9%)