I happen to be using a case and drive with IDE connectors, but SATA should also work
Step 1: What You Need
- Unused DVD drive
Notice that the connectors inside the enclosure must match the connectors on the DVD Drive for it to work. I happened to have an old IDE drive and an old external HDD which is also IDE connected. I don't know about the modern ones, but i guess it would also work with SATA.
Step 2: Disassembly
after that you should be presented with somthing like what you see on the second picture.
Step 3: Assemble the Whole Thing
after you have everything connected, set up the boot priotiry on yout netbook to USB and voila! - you now have an external USB DVD-Drive and can install all the great programs and old games on your netbook.