  We consider lepton flavor violations (LFV) mediated by photino as a result of
the nondiagonal slepton mass matrices in general supersymmetric models. Using
the experimental upper bounds on l \to l' + gamma and mu^- + Ti \to e^- + Ti as
constraints on the flavor changing slepton mass insertions, we predict the
possible ranges of the upper limits on the branching ratios of other LFV
processes such as l \to 3l', tau \to l_{i\neq 3} + pi^0 (or eta, rho^0, phi),
Z^0 \to l_i bar{l}_{j\neq i}, and muonium \to antimuonium conversion. Most of
these decays are expected to occur with small branching ratios far below the
current or future experimental search limits. We also derive constraints on the
flavor conserving mass insertions from the anomalous magnetic moments of
leptons.
