BLOCKS_PER_DECODE
spTempBuffer.Assign(new unsigned char [spAPEDecompress->GetInfo(APE_INFO_BLOCK_ALIGN) * BLOCKS_PER_DECODE], TRUE);
spMACProgressHelper.Assign(new CMACProgressHelper(nBlocksLeft / BLOCKS_PER_DECODE, pPercentageDone, ProgressCallback, pKillFlag));
int nRetVal = spAPEDecompress->GetData((char *) spTempBuffer.GetPtr(), BLOCKS_PER_DECODE, &nBlocksDecoded);