  We attempt to derive quiver Chern-Simons-matter theories from the
Bagger-Lambert theory with Nambu bracket, through an orbifold prescription
which effectively induces a dimensional reduction of the internal space for
3-algebra. We consider M2-branes on an N=4 orbifold $C^2/Z_k\times C^2$, and
compare the result with the so-called dual Aharony-Bergman-Jafferis-Maldacena
model, proposed recently by Hanany, Vegh, and Zaffaroni. Unlike the N=6 example
$C^4/Z_k$, we find ambiguities in the matrix regularization.
