The sm20_pack.zip file you have requested: Maps Levels Missions / Map Packs / Speedmapping Packs / Speed Mapping Pack 20 - 660.21kb is not available. Perhaps try browsing all files for the game Quake and upload any files you want to share or are missing. This is the only information we could locate:
Speed Mapping Pack 20 - 09/06/2001 8:10pm to 9:50pm GMT==============================================================================Authors : 6, read below. Maps packed by PaulEmail Address : firstname.lastname@example.org 100 minute speed mapping session, 4 SP and 2 DM maps.