playing hd downloaded videos

To fix your issue, please follow these steps.

1. Open RealPlayer.
2. Click the RealPlayer logo, then Preferences. 
3. In the Category pane, select Hardware.

- Under Video Card Compatibility, move the slider bar to Most reliable.
- Click OK twice to save the changes.
- Close out of RealPlayer, restart it. 

If this doesn't help, move move the slider bar to Best Performance and restart it.