  We study the degeneration problem for maximal Cohen-Macaulay modules and give
several examples of such degenerations. It is proved that such degenerations
over an even-dimensional simple hypersurface singularity of type $(A_n)$ are
given by extensions. We also prove that all extended degenerations of maximal
Cohen-Macaulay modules over a Cohen-Macaulay complete local algebra of finite
representation type are obtained by iteration of extended degenerations of
Auslander-Reiten sequences.
