Bar Ilan University has produced a CD-ROM version of Mikraot Gedolot HaKeter, based on the Aleppo Codex (the most accurate surviving text of the Tanakh) and early medieval manuscripts. Edited by Menachem Cohen, it provides much of the same content as his printed critical edition, which began publication in 1992 [located at Reference Oversize BS715 1992 in the JTS Library]. It includes the Tanakh, the Mikraot Gedolot commentaries, the mesorah, the vocalization and the cantillation.
The outstanding feature of the CD-ROM version is its searching capabilities. The Biblical text, the commentaries and the mesorah are all fully searchable--not only by Hebrew words, but also by vowels and ta'amim. This allows the researcher to retrieve all words with a particular pattern of vowel combinations, or all words with a particular pattern of trope notation.
The CD-ROM also provides additional functionalities, such as the Hebrew shoresh search option, a Keri/Ketiv list, and statistics of the numbers of verses, words and letters in the manuscript as a whole, and in its parts.
Ya'akov Aronson has written a detailed article outlining the contents of the printed and CD-ROM editions of Mikraot Gedolot HaKeter. Three instruction documents for the CD-ROM edition are available at the JTS Library's Reference Desk.
Quality images of the Aleppo Codex manuscript itself, along with background information, have been made available via the Ben Zvi Institute.
To access this unique CD-ROM resource, which is available on-site at the JTS Library, please contact the Reference staff at email@example.com or 212-678-8081