My latest audio book, Kilo Class by Patrick Robinson, required me to add a new sorting feature to CopyUnique. I was using Windows Media Player 10 to rip the CDs to MP3s, but the CD info Windows Media Player downloaded was completely wrong for several of the discs. To make matters worse, sorting the files by name no longer resulted in the correct sequence.
I ended up adding the ability to sort the files by the creation date or last modified date since that guarantees they will be renamed in the same order they were ripped from the CDs. This preserves the correct file naming sequence and works even if the title and album info for the CDs is wrong and/or inconsistent.