'vrleptch.zip' contains two files: 'vrleptch.dif' and 'vrleqang.dif'. Both of these implement run-length encoding of the 'v_info.txt' file, so as to allow large numbers of vaults to be added without exceeding the 60K memory limit (which does not exist in Zangband 2.2 or Kamband related variants). The length of the raw data is roughly halved. 'vrleptch.dif' is applicable to versions of Angband 2.8.0 and later, probably including most variants; 'vrleqang.dif' should be used instead if the version to be patched uses Qangband-style random quests. Old .raw files will continue to work properly. The files patched are 'generate.c' and 'init1.c'. Apply the patch using the '-F3' option. Recompile, remove 'v_info.raw', and add lots of vaults :) Eric Bock ejbok@micron.net