To select DR1 as your standard disk recorder, please follow these steps:
[ Optional]
Do a Backup of your clips by following the steps in this article: Save Time and Effort with Our New "BackUp" Feature: Saving Clips Made Easy!
Once the Backup is done, open the Config Editor and change the "Disk Recorder Type" from 2 to 1. The "Disk recorder type" option can be found on the "Video" tab of the Config Editor.
Save your changes and re-launch Coach Paint.
[Optional]
Restore your clips as explained in the last part of the "Save Time and Effort with Our New "BackUp" Feature: Saving Clips Made Easy!" article.