GC Sound/FMV problem

[taurusnipple]

I was playing F-ZERO GX on Master setting and on the final lap of my last race the sound went dead. Now I finished the race and got upto the ending FMV and the FMV was frozen. Now is this a one off deal here or is this some sort of GC hardware prob that's going on? Has anybody else had FMV/sound issues?