rem: AIFCHeader.FORMsize = sizeof(AIFCHeader) + data->totallength - 8;
add: AIFCHeader.FORMsize = data->totallength - 8;
context: void FillAIFCheader(struct HandlerData *data) {  AIFCHeader.FORMsize = sizeof(AIFCHeader) + data->totallength - 8;  AIFCHeader.COMMchunk.numChannels = data->channels;  AIFCHeader.COMMchunk.numSampleFrames =       data->totallength / AHI_SampleFrameSize(data->type);  AIFCHeader.COMMchunk.sampleSize = data->bits;  ulong2extended(data->freq, &AIFCHeader.COMMchunk.sampleRate);  AIFCHeader.SSNDsize = sizeof(SampledSoundHeader) + data->totallength;}