This article is from the Apple ][ Emulator Resources Guide, by Alex Maddison with numerous contributions by others.
Applications exist which allow the incorporation of single DOS 3.3 files or compressed archives - such as those found on "pure" Apple ][ FTP sites or in the Apple binary newsgroup - into existing or new disk-images. Programs such as "dsk_in" and "dsk_out" by Tom Baker <tombaker@world.std.com> and "VIEWDISK" and can write Apple files into disk-images, and extract same to MSDOS files. The "Apple2 Dos Utility Package v1.0" by William Night <wnight@wimsey.com> contains MSDOS executables for "DosStrip" and "DFormat" to copy a disk's DOS and format other disk-images with that DOS (useful for removing or replacing DOS 3.3), as well as "DiskRead" and "DiskWrit" which read and write files for disk-images. For Windows users, try "a2dsk v001" by Jeff Miller. On the Macintosh, "Apple ][ DOS 3.3 Utility v1.0.0" and "A2 Disk Edit v1.1.0" by Hideki Naito <pbc03243@niftyserve.or.jp> offer the ability to transfer different types of Basic (binary and Applesoft) files as well as text files. "Image2File v1.1" is another Macintosh utility by Ron Kneusel <rkneusel@post.its.mcw.edu> which can read Dos, ProDOS and Pascal DO and PO images. For SimSystem disk-images, use "aftp" by Galen C. Hunt <gchunt@cc.dixie.edu> which browses, extracts and adds files to SimIIe disk (.IIE) and hard-disk volumes (.HDV) - part of the "sim2du10" archive. The SST package contains ANSI C, MSDOS and Amiga executables for "Extract", a file which extracts binary files from disk-images. "Extract 2" by Bob Colbert <rcolbert@oasis.novia.net> is a newer version of the MS-DOS executable. Amiga users can also use "afid" by George Phillips <phillips@cs.ubc.ca> on DOS3.3 disk-images to catalog, read and write files (also available in C source code). "afid" is included as part of the "Apple2000" emulator package for the Amiga. By the same author, "udisk" is a program (in C source code) which can read files from ProDOS and C64 1541 disk-images.
These applications are of vital use to use who do not possess the ability to make disk-images on an original Apple ][; finding a single Apple file on an FTP site and using it with an emulator is no longer an insurmountable problem. Unfortunately, all of the utilities described above (except "udisk") are designed only for DOS 3.3 disks and will not work on ProDOS volumes.
PROGRAM LOCATIONS: ftp://ftp.apple.asimov.net/pub/apple_II/utility/dsk_in.zipftp://ftp.apple.asimov.net/pub/apple_II/utility/dsk_out.zipftp://ftp.apple.asimov.net/pub/apple_II/utility/viewdisk.zipftp://ftp.apple.asimov.net/pub/apple_II/utility/a2_dos_utils_v1.zipftp://cassandra.ucr.edu/pub/apple2/incoming/ftp://ftp.apple.asimov.net/pub/apple_II/utility/image2file.cpt.hqxftp://kreeft.intmed.mcw.edu/Q/pub/mac/http://keaggy.intmed.mcw.edu/image2file.htmlftp://ftp.apple.asimov.net/pub/apple_II/emulators/simiie/ (contains "aftp") ftp://ftp.apple.asimov.net/pub/apple_II/utility/extract.zipftp://ftp.apple.asimov.net/pub/apple_II/utility/extract2.zipftp://ftp.uni-kl.de/pub/apple2/amiga/Apple2000v13.lha (contains "afid") ftp://ftp.apple.asimov.net/pub/apple_II/utility/udisk.shar.gz
 
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