I think it would be nice to have a button or an option that allows stop defragment action, but after finishing with the file in the process, to avoid leaving it in parts.
Example, while the process defragment free space or defragment fragmented files only (option defragmented faster), and work with large files, stop work after finishing with the file in process.
I want to say the program is great, it helps me so much and i want to say i am sorry for my bad english, because i am from spanish country.
Waiting for your comments.
Best regards.