drill into a particular difference in a folder with Beyond Compare

1. open Beyond Compare
2. at the "Specs" tab enter values for "Left folder" and "Right folder"
3. at the "Comparison" tab, check the checkbox for "Compare contents" and then the radio button for "CRC comparison" (CRC stands for Cyclic redundancy check and is a means for finding differences in files that are somewhat alike)
4. click the "Open" button to see the files in the folders
5. double-click any red file to do a comparison