Carnitine-acylcarnitine translocase deficiency resulting from many different mutations in SLC25A20 results in a multi-systemic disorder that includes cardiomyopathy as one of its clinical features (OMIM 212138) (Stanley et al., 1992; Pande et al., 1993; Iacobazzi et al., 2004). Here, SLC25A20 is linked to cardiomyopathy.