TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Method: In converting carbonaceous material to methane, the first microorganism is Clostridium. The first microorganism is Clostridium phytofermentans or Clostridium sp. Q.D. The condition is a reducing condition. Carbonaceous material comprises municipal waste, biomass, wood, coal, a natural or synthetic polymer, or its combination. The carbonaceous material is biomass, where biomass is Distillers Dried Solubles (DDS), Distillers Dried Grains (DDG), Condensed Distillers Solubles (CDS), Distillers Wet Grains (DWG), or Distillers Dried Grains with Solubles (DDGS). The second microorganism is selected from an acidogen, an acetogen, a methanogen and its combination, preferably methanogen. The Clostridium phytofermentans or the medium ferments the biomass to produce reducing products that benefit the methanogen and increase methane production rates in comparison to a condition where the Clostridium phytofermentans or the medium is absent. Methane production is greater than about 1.5X than a condition where the first microorganism or the medium is absent. Converting first occurs in about 7 to about 14 days. The hydrolytic enzyme is selected from exo-cellobiohydrolase, beta-D-glucosidase, endo-glucanase, beta-D-xylosidase, endo-xylanase and its combination. The fermentation end-product is methanol, acetic acid, lactic acid, carbon dioxide (CO2) or hydrogen gas (H2). The conversion is anaerobic. The second microorganism is a member of the genus Prevotella; Ruminobacter; Fibrobacter; Selenomonas; Anaerovibrio; Succinivibrio; Succinomonas; Treponema; Ruminocaccus; Streptococcus; Megasphaera; Butyrivibrio; Lachnospira; Lactobacillus; Eubacterium; Clostridium; Succiniclasticum; Wolinella; Veilonella; Methanobrevibacter; Methanobacterium; Methanosarcina; Methanosarcina; Methanomicrobium; Neocallimastix; or Piromyces. Preferably, the second microorganism is Prevotella ruminicola; Prevotella bryantil; Ruminobacter amylophilus; Fibrobacter succinogenes; Selenomonas ruminantium; Anaerovibrio lipolytica; Succinivibrio dextrinisolvens; Succinomonas amylolytica; Treponema bryantil; Ruminocaccus albus; Ruminocaccus flavefaciens; Ruminocaccus bromil; Streptococcus bovis; Megasphaera elsdenii; Butyrivibrio fibrisolvens; Lachnospira multipara; Lactobacillus ruminis; Lactococcus vitulinus; Eubacterium ruminantium; Clostridium polysaccharoliticum; Succiniclasticum ruminis; Wolinella succinogenes; Veilonella parvula; Methanobrevibacter ruminantium; Methanobacterium formicicum; Methanosarcina barkeri; Methanosarcina mazei; Methanomicrobium mobile; Neocallimastix frontalis or Neocallimastix patriciarum. Steps (a) and (b) occur in the same or different digester. Preferred Digester: The digester further comprises reduced product generated from the biomass by the Clostridium phytofermentans, the medium or the enzyme. EXAMPLE - No suitable example given.