CD-ROM (an abbreviation of "Compact Disc Read-Only Memory") is a compact disc that contains data accessible by a computer. While the compact disc format was originally designed for music storage and playback, the format was later adapted to hold any form of binary data. CD-ROMs are popularly used to distribute computer software, including games and multimedia applications, though any data can be stored (up to the capacity limit of a disc). Some CDs hold both computer data and audio with the latter capable of being played on a CD player, whilst data (such as software or digital video) is only usable on a computer. These are called Enhanced CDs.
Although many people use lowercase letters in this acronym, proper presentation is in all capital letters with a hyphen between CD and ROM.

ABC Publications - Publishers of genealogy CDs for Scotland, Wales and Ireland including directories, indexes, registers, rolls, census data and other sources or works of reference.
Meta Description: [ Genealogy CDs for Scotland Wales and Ireland ]
Direct Resources - Offers 19th Century English Trades Directories covering all 40 English counties. Download sample files or purchase CD-ROMs.
Greater Cincinnati Connections - Offers directory database CD-ROMs for Ohio, Kentucky and Indiana.
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Old Colony Ancestors - Database of over 106,000 names from southeastern Massachusetts. Plymouth, Bristol, Barnstable, and Norfolk Counties are included.
Meta Description: [ Genealogy Gedcom file of 200.000 names and 60,000 marriages of the settlers of Southeastern Massachusetts ]
Patrimonium Transcriptum - Online shop selling CD-ROMs of scanned church registers.
Meta Description: [ Ziel der Patrimonium Transcriptum Verlags GmbH ist es, durch Digitalisierung die dauerhafte Erhaltung und Benutzbarkeit von Urkunden, Dokumenten, Büchern und Zeitungen, Handschriften aller Art, Skizzen und Fotographien sicherzustellen. ]
UK Genealogy Archives - Publisher of UK genealogy, heraldry and family history related books on cd-rom.
Meta Description: [ Publisher of United Kingdom Genealogy, Heraldry and Family History related books on CD-ROM. ]
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Wales Genealogy Online Store - South and West Wales Genealogical and Family History Products and Services
Meta Description: [ WALES GENEALOGY, ENGLAND GENEALOGY, ENGLAND-GENEALOGY, Wales Genealogy, Wales-Genealogy, Wales-Census, UK-Census, Wales Census, UK Census, Wales Genealogy ADELINE GUEST HOUSE, PEMBREY, ACCOMODATION, CARMARTHENSHIRE FHS, CARMARTHEN FHS, WALES GENEALOGY, WALES-GENEALOGY, FAMILY HISTORY, CARMARTHENS... ]
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Ye Olde Genealogical Shoppe - Variety of years and state directories on CDs.
Ye Olde Genealogie Shoppe - Index of names on their data products as well as forms, charts, maps, CD-ROMs, books, and seminars.
Meta Description: [ Ye Olde Genealogie Shoppe is the source for all of your genealogy needs, forms, charts, maps, CD-ROM's, books, and seminars ]
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