Q. Does one have to check tefilin and mezuzot using a computer program as it is done in our times with a Sefer Torah?
A. Horav Shlomo Miller’s Shlit’a opinion is that if they were checked properly when written, one is not obliged to check them again. However, the Rov maintains, since occasionally even after being revised by authorized professional scribes, mistakes are still found, it is preferable to have them computer tested and inspected. (See Maayanei Shlomo O.H. 4).
Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit’a