▁Digital ▁T ape ▁Tree ▁volumes ▁were ▁replaced ▁by ▁later ▁T anger ine ▁Tree ▁or ▁T anger ine ▁Le aves ▁volumes . ▁ ▁In ▁September ▁ 2 0 0 2 , ▁before ▁T anger ine ▁Tree ▁set ▁three ▁was ▁released , ▁an ▁inter im ▁Classic ▁Tree ▁was ▁established ▁for ▁distrib uting ▁copies ▁of ▁non - rem aster ed ▁already - cir cul ating ▁boot leg s . ▁All ▁of ▁the ▁concert s ▁used ▁in ▁the ▁Classic ▁Tree ▁were ▁subsequently ▁released ▁as ▁T anger ine ▁Tree ▁volumes ▁in ▁superior ▁quality , ▁rendering ▁the ▁Classic ▁Tree ▁volumes ▁and ▁the ▁boot leg s ▁they ▁represented ▁ob sole te . ▁ ▁When ▁new ▁sets ▁were ▁released , ▁standard ▁audio ▁versions ▁on ▁CD - R ▁were ▁trad ed ▁by ▁signing ▁up ▁on ▁the ▁project ▁home ▁page ▁on ▁a ▁" bl anks ▁and ▁st amps " ▁basis ▁where ▁the ▁only ▁actual ▁trade ▁was ▁of ▁blank ▁CD s ▁and ▁sh ipping . ▁To ▁reduce ▁the ▁number ▁of ▁CD s ▁involved ▁in ▁the ▁trade , ▁the ▁audio ▁tracks ▁were ▁com pressed ▁using ▁the ▁short en ▁loss less ▁compression ▁format . ▁ ▁The ▁T anger ine ▁Tree ▁project ▁was ▁dis cont in ued ▁on ▁ 1 7 ▁October ▁ 2 0 0 6 ▁by ▁He iko ▁He ers sen ▁due ▁to ▁legal ▁concerns ▁and ▁personal ▁reasons . ▁Re leases ▁now ▁can ▁be ▁easily ▁found ▁on ▁the ▁Internet ▁and ▁most ▁re put able ▁trad ing ▁sites ▁will ▁post ▁those ▁that ▁have ▁not ▁been ▁converted ▁to ▁official ▁releases . ▁ ▁Live ▁concert s ▁by ▁date