22Disk                           Various versions of 22Disk, plus docs
00-index.txt                     file descriptions, sources and other info
CPMDISKS.130                     22Disk v1.30 CPMDISKS.DEF shareware version
CPMDISKS.140                     22Disk v1.40 CPMDISKS.DEF shareware version
CPMDISKS.142                     22Disk v1.42 CPMDISKS.DEF shareware version
CPMDISKS.144                     22Disk v1.44 CPMDISKS.DEF shareware version
cpmdisks.eur                     EURO1.DEF 22Disk defs for some European systems
CPMDISKS.GS                      22Disk definitions from guido-speer.de, many new
CPMDISKS.GS2                     CPMDISKS.GS distilled to just new/modified defs
CPMDISKS.REG                     22Disk v1.44 CPMDISKS.DEF registered(?) version
diskdefs.coc                     Disk defs culled from comp.os.cpm
kraemer1.def                     Larry Kraemer's disk defs for cpmtools and libdsk
kraemer2.def                     Some of Larry Kraemer's disk definitions
cpmdisks.gab                     Gaby Choudry's additional 22Disk definitions
libdskrc                         My own .libdskrc; probably has additional defs
newdefs1.pdf                     Kraemer tutorial: develop new 22Disk definitions
22dconv_0.5.sh                   Bash 4+ script to convert 22DISK defs to cpmtools
22dconv_0.6.sh                   ""
22dconv_0.6.1.sh                 ""
22dconv_0.6.2.sh                 ""
22dconv_0.6.3.sh                 ""
CPMDISKS.KC85                    KC85-Systems standard format def

Sources of the files in this directory:

CPMDISKS.130                     http://ftp.funet.fi/index/msdos/utilities/diskutil/22disk-mm1
CPMDISKS.140                     http://kcclub.de/dlarchiv/09/RUBRIK46.HTM
CPMDISKS.142                     http://www.cpm.z80.de/share.html
CPMDISKS.144                     http://www.gaby.de/edownl.htm
CPMDISKS.GS                      http://www.guido-speer.de/pub/cpmdisks.def
cpmdisks.reg                     cpm/Software//maslin/maslin_c_d_10apr97/cdrive/22dsk/tmp/cpmdisks.d
kraemer2.def                     http://forums.debian.net/viewtopic.php?f=16&t=112244
cpmdisks.gab                     http://www.gaby.de/newdisks.def
22dsk139.zip                     http://www.retroarchive.org/cpm/cdrom/UTILS/22DISK/22DSK139.ZIP
22dsk142.zip                     http://www.cpm.z80.de/share.html
22dsk144.zip                     http://kcclub.de/dlarchiv/09/RUBRIK46.HTM ; http://www.gaby.de/edownl.htm
                                 ftp://ftp.lip6.fr/pub/amstrad/emu-uti/22dsk144.zip
                                 http://www.genesis8bit.fr/amstrad/faq/amstrad.php
                                 http://www.genesis8bit.fr/frontend/emu-uti.php
22dskdoc.zip                     
CPMDISKS.KC85                    http://susowa.homeftp.net/index.php/download-topmenu/viewdownload/9-pc-software/86-22disk-definition-kc85-systemdiskette.html

Notes:

Herb Johnson's discussion                   http://www.retrotechnology.com/herbs_stuff/sydex.html
Gaby Choudry's 2004 announcement            https://groups.google.com/forum/#!topic/comp.os.cpm/470kch6QGf8
Larry Kraemer's tutorial HowTo Access CP/M 
Floppy's via libdsk & cpmtools              http://forums.debian.net/viewtopic.php?f=16&t=112244

This Amstrad site: http://www.faqs.org/faqs/amstrad8bit-faq/ mentions EURO.DEF, but the link is dead. 
It's also mention at http://www.fvempel.nl/3pc.html. Find it.