Released by Ampere Metal - ARC is one of the best archiving / compression utilities ever made for the C64. There are tons of options and a lot of power w/RAM disk support. The down side is this is a command line only utility so it does require some learning. Docs and RAM disk driver are on the disk.

Arc Aid v6.0 by Dan Levine is a menu driven interface for creating .ARC compressed files using Arc 2.30 on a Commodore 64 with one or two disk drives.  Also included is the Arc to SDA utility by Mark Rhodes (November 1987) that will turn a compressed archive into a self disolving file when run.

Written by Randall Jay Williams and released on September 10th, 1996. ARCSCAN will examine the ARC header for the specified file, drive, and drive unit (device) number. It will compare valid ranges and then report on whether or not the .ARC file is a Commodore ARChive file or another type of archive file - the actual type will not be reported.

Written by Dan Levine and Fixed by Paul Secinaro. ARC/SDA Aid is a menu driven interface for the ARC compression / archiving program. Arc v 2.30 and full docs are included on the disk.

Released September 1988 and Written by B. Mark Rhodes. ARC-SDA is a utility to convert a .ARC compressed archive into a self dissolving archive.

ARC to SDA v3.6 by Mark Rhodes with special thanks to Chris Smeets - If you know what an .ARC file is, then you know what this program is for.  If you don't know, then move along, you don't need this.

Arc to SDA v4.5 by Mark Rhodes (November 1987) - This handy utility will convert a collection of files compressed with Arc into a self-dissolving file.  The program goes much farther than converting .arc to .sda, it can also analyze the block allocation map for all the files on the disk.  The coolest feature I was never aware of is called "whittle".  Using whittle, you won't run into a situation where you give someone with a single disk drive a file so big it can't be uncompressed because there isn't room for both the compressed file and it's contents on a single floppy. Included in the archive is documentation describing many of the other features.

Note - there is a newer version of this program available here (v5.1).

(c)1986 by Elnicorp. I believe this is the very first version of the excellent ARC archiving / compression utility for the C64. I recommend using version 2.50.4 which I think is the last version released, but I'm including this version for historical reasons. Docs are included on the disk.