If you've ever taken a quick glance at your Event Viewer, you may notice a shitload of messages from ati2mtag.
To disable this ridiculous debug spamming, run:
- reg add HKLM\SYSTEM\CurrentControlSet\services\Atierecord /f /v eRecordEnable /d "0" /t REG_DWORD
- Reboot.
- You may have to do that every time you install a new driver.
Source: Thousands of ati2mtag event 62464s (DVD_OV UVD Information) in System event log