Hi, I can't remember when (if) we discussed the only known laterally-recorded cylinder, ca. 1904. But I have just added a 4-page article (from 2006) on the sole surviving example, by one James Wright Van Meter (now buried in LA). A portion of the celluloid record can be accessed by clicking on the yellow phonograph admission ticket at the bottom right of the webpage, and the accompanying pdf article by clicking on its title. The inventor actually discusses his new zig-zag process on the unbreakable cylinder itself! Articles like this appear from time to time in CAPS (the Calif newsletter magazine). The current issue (Dec) will cover, among other things, an unknown Berliner disc from 1896. Allen _www.phonobooks.com_ (http://www.phonobooks.com)