Sony VAIO VGC-RB34G Desktop PC (Intel Pentium 4 Processor 540J, 512 MB RAM, 200 GB Hard Drive, Dual Layer DVD+/-RW, DVD-ROM Drives) (Discontinued by Manufacturer) Intel Pentium 4 Processor 540J 3.20 GHz with 1MB L2 Cache and 800MHz FSB with HT Technology 200GB SATA Hard Drive up to 7200 RPM DVD+R Dual Layer combo drive with DVD+/-R/RW (also reads, records, rewrites CD) Separate DVD-ROM reader drive 512MB PC3200 DDR with 400MHz Bus expandable up to 2GB