Angle-dependent magnetoresistance oscillations (AMRO) of the organic superc
onductor (BEDO-TTF)(2)ReO4. H2O have been studied at 15T and 30T and in the
temperature range 1.7K - 4.2K. Although a field induced phase transition i
s thought to occur above similar to 15T, no change of the Fermi surface was
found.