21 Second Backup by Charles Leborgne was quite an amazing hardware / software combo back in the day.  I always wanted to have this when I was a kid, but somehow ended up with the Datel Burst Nibbler combo instead.  I recently picked up a reproduction of this hardware from COREi64.  For a long time, the software side of this combo was uncopiable, but recently that has changed.  Here is a YouTube video from 8-Bit Resurgence demonstrating that it was indeed copied.

Here is a LINK to an interview with the author of 21 Second Backup.

Here is a LINK to the C64 Copy Protection website that has more details about the program and even a diagram of how to build the custom hardware cable yourself.

Written by Mr. Z. 216 Disc Save is a tape to disk utility that appears to be able to transfer up to a 216 block program, about 54k.

Don't have any info on this program, but it is quite easy to use and has some built-in help.

Wish I had more info for you about this program.  All I can say is it's a mouse driven 2x2 Sprite editor for the Commodore 64.

3 Column Directory Printer by Prismware is an excellent utility for printing out really long directory listings on a single sheet of paper.

30 Second Copy by Reiner Koukal Jun. is a single drive copier for the Commodore 128 and 1571 floppy drive.

30x Turbo was imported by BKS Odenwald.  Don't have any other information.

3D Commodore Logo (1920x1080)

3D Graphics Drawing Board Manual

3D TicTacToe for GEOS by Marc F. Brouillette (Dated Oct. 28, 1990) - This looks like a neat version of an old classic that can be played with two people, or against the computer.  The game seems to run fine, but I couldn't figure out how to place my X or O.  If you have any insight, please drop a line using the Contact Us link in the banner.

4 Block Noter by Matt' of Tera is a simple straight forward noter which saves out to a small 4 block (2k) file.

This freeware disk nibbler is given by C.H.U.G. - Not sure if chug is a person or a group, but at least they gave a decent nibbler with half track support.

40 Tacks! by C.I.A. (1985) - No clue why this file copier is called 40 Tracks!, but it seems to do it's job well enough.  If you have any further info, please drop a line via the Contact Us link.

Here we have a nice collection of original disk labels for Commodore 64 games that have been scanned and cleaned up.  Visit the official site for more up-to-date scans - https://www.dumpclub64.it/

4th & Inches (by Accolade) Manual