It seems like you are facing issues with your Samsung DVD R/RW drive on a 32-bit Windows 7 RC build 7100. The drive is working, but it is extremely slow to recognize discs and causes the system to hang when a DVD is inserted, making it difficult to use. Here are some troubleshooting steps you can try to resolve the issue with your Samsung DVD drive: 1. Check IDE/SATA Cables: Ensure that the IDE/SATA cables connecting the DVD drive to the motherboard are secure and not loose. A loose connection can cause slow performance. 2. Check for Driver Updates: - Visit the Samsung website and check for any updated drivers for your specific DVD drive model. - Install the latest drivers if available and compatible with Windows 7 RC. 3. Check BIOS Settings: - Enter the BIOS of your computer (usually by pressing a specific key during startup like F2, Del, or F12). - Verify that the settings related to the DVD drive are correct (e.g., IDE configuration). 4. Compatibility Mode: - Try running the applications (COD4, COD5, BF2) in compatibility mode. Right-click on the game's executable file, go to Properties, and set the compatibility mode to an older version of Windows like Windows XP. 5. Check for Firmware Updates: - Confirm if there are any firmware updates available for your Samsung DVD drive. Installing updated firmware might improve compatibility and performance. 6. Check Event Viewer: - Check the Event Viewer in Windows 7 for any error messages related to the DVD drive. This might provide more insight into what is causing the slow performance. 7. Test in Safe Mode: - Boot your Windows 7 into Safe Mode and try using the DVD drive. If it works fine in Safe Mode, a third-party software or driver might be causing the issue. 8. Update Windows 7: - Ensure that your Windows 7 system is up to date with all the latest Windows Updates. Some updates might include fixes for device compatibility. 9. Try a Different DVD Drive: - If possible, test a different DVD drive on your Windows 7 system to see if the issue is specific to the Samsung drive or a more general problem with optical drives. 10. Check System Resources: - Make sure that your system resources are not overloaded. Too many applications running in the background might affect the performance of the DVD drive. By following these steps, you should be able to troubleshoot and hopefully resolve the issue you are experiencing with the Samsung DVD R/RW drive on your Windows 7 system.