Problem: I have an Emachine and I recently installed a CD-RW drive, but it does not show up in Windows. Why?
Possible Solution: You will need to download the VIA “IDE Miniport Driver” (http://www.viaarena.com). This is not part of Via 4 in 1 service pack which you should also have installed. The Miniport Driver will install a “Bus Master PCI Utility”, which you will see in your system tray after installation. Double-click on it and you should see your CD-RW drive in the list. Click once on the CD-RW drive and change it’s current mode to PIO MODE 4, then click File and click Save, click File and Click Commit Change. After re-boot the CD-RW should work as expected.