Duplicating some files

It's not a hard work that you can have a try powerful program Leawo Tunes Cleaner. Leawo Tunes Cleaner is a professional duplicate music remover.
Step 1. Run Tunes Cleaner and Scan Duplicate Songs
After kicking off Leawo Tunes Cleaner for Windows, click the "Clean-up Duplicates" entry. The program provides 2 duplicates scanning modes: Quick Scan mode and Deep Scan mode. Select one of them to scan duplicate songs.

Step 2. Add Music Files for Duplicates Removing
You could delete duplicate songs in iTunes music library by directly clicking "Scan iTunes" button or click "Add"button to load music files for duplicates removing. Or you could directly drag music files from your local folder to the software for duplicates removing.

Step 3. Start Deleting Duplicates
After loading source music files, click the "Scan" button on the upper-right corner to start scanning duplicates. The program would display all duplicates clearly and suggest what to remove. You could decide which duplicates to delete by checking them and then click the "Remove" button to remove duplicate songs.

For more details, check: How to Delete Duplicate Songs

Try to erase files in windows explorer, your player should be visible when you click on "My computer". Just find "media" subfolder in it and find duplicated songs. If this won't work you can try to erase duplicated files with winamp, but you need version 5.5 or later for this. Find "portable" section in winamp media library and you should see samsung k3 in this section. Then just find duplicated file, right click on it and choose "remove from device". Hope this can help.